diff --git a/doc_classes/BehaviorTreeView.xml b/doc_classes/BehaviorTreeView.xml
index e85d6d5..6e97ecc 100644
--- a/doc_classes/BehaviorTreeView.xml
+++ b/doc_classes/BehaviorTreeView.xml
@@ -17,4 +17,9 @@
 			</description>
 		</method>
 	</methods>
+	<members>
+		<member name="update_interval_msec" type="int" setter="set_update_interval_msec" getter="get_update_interval_msec" default="0">
+		Minimum delay between two updates (in milliseconds). Set to higher values for a lower CPU load.
+		</member>
+	</members>
 </class>
diff --git a/editor/debugger/behavior_tree_data.cpp b/editor/debugger/behavior_tree_data.cpp
index 9626bb4..0ec8ef1 100644
--- a/editor/debugger/behavior_tree_data.cpp
+++ b/editor/debugger/behavior_tree_data.cpp
@@ -25,7 +25,6 @@ Array BehaviorTreeData::serialize(const Ref<BTTask> &p_tree_instance, const Node
 	// Flatten tree into list depth first
 	List<Ref<BTTask>> stack;
 	stack.push_back(p_tree_instance);
-	int id = 0;
 	while (stack.size()) {
 		Ref<BTTask> task = stack[0];
 		stack.pop_front();
@@ -41,7 +40,7 @@ Array BehaviorTreeData::serialize(const Ref<BTTask> &p_tree_instance, const Node
 			script_path = s->get_path();
 		}
 
-		arr.push_back(id);
+		arr.push_back(task->get_instance_id());
 		arr.push_back(task->get_task_name());
 		arr.push_back(!task->get_custom_name().is_empty());
 		arr.push_back(num_children);
@@ -49,8 +48,6 @@ Array BehaviorTreeData::serialize(const Ref<BTTask> &p_tree_instance, const Node
 		arr.push_back(task->get_elapsed_time());
 		arr.push_back(task->get_class());
 		arr.push_back(script_path);
-
-		id += 1;
 	}
 
 	return arr;
@@ -89,7 +86,6 @@ Ref<BehaviorTreeData> BehaviorTreeData::create_from_tree_instance(const Ref<BTTa
 	// Flatten tree into list depth first
 	List<Ref<BTTask>> stack;
 	stack.push_back(p_tree_instance);
-	int id = 0;
 	while (stack.size()) {
 		Ref<BTTask> task = stack[0];
 		stack.pop_front();
@@ -106,7 +102,7 @@ Ref<BehaviorTreeData> BehaviorTreeData::create_from_tree_instance(const Ref<BTTa
 		}
 
 		data->tasks.push_back(TaskData(
-				id,
+				task->get_instance_id(),
 				task->get_task_name(),
 				!task->get_custom_name().is_empty(),
 				num_children,
@@ -114,7 +110,6 @@ Ref<BehaviorTreeData> BehaviorTreeData::create_from_tree_instance(const Ref<BTTa
 				task->get_elapsed_time(),
 				task->get_class(),
 				script_path));
-		id += 1;
 	}
 	return data;
 }
diff --git a/editor/debugger/behavior_tree_data.h b/editor/debugger/behavior_tree_data.h
index e5c2335..0d5ee9e 100644
--- a/editor/debugger/behavior_tree_data.h
+++ b/editor/debugger/behavior_tree_data.h
@@ -22,7 +22,7 @@ protected:
 
 public:
 	struct TaskData {
-		int id = 0;
+		uint64_t id = 0;
 		String name;
 		bool is_custom_name = false;
 		int num_children = 0;
@@ -31,7 +31,7 @@ public:
 		String type_name;
 		String script_path;
 
-		TaskData(int p_id, const String &p_name, bool p_is_custom_name, int p_num_children, int p_status, double p_elapsed_time, const String &p_type_name, const String &p_script_path) {
+		TaskData(uint64_t p_id, const String &p_name, bool p_is_custom_name, int p_num_children, int p_status, double p_elapsed_time, const String &p_type_name, const String &p_script_path) {
 			id = p_id;
 			name = p_name;
 			is_custom_name = p_is_custom_name;
diff --git a/editor/debugger/behavior_tree_view.cpp b/editor/debugger/behavior_tree_view.cpp
index e98a557..c8e05d2 100644
--- a/editor/debugger/behavior_tree_view.cpp
+++ b/editor/debugger/behavior_tree_view.cpp
@@ -22,6 +22,7 @@
 #include "core/math/color.h"
 #include "core/math/math_defs.h"
 #include "core/object/callable_method_pointer.h"
+#include "core/os/time.h"
 #include "core/typedefs.h"
 #include "editor/editor_scale.h"
 #include "editor/editor_settings.h"
@@ -30,6 +31,7 @@
 
 #ifdef LIMBOAI_GDEXTENSION
 #include <godot_cpp/classes/editor_interface.hpp>
+#include <godot_cpp/classes/time.hpp>
 #endif // LIMBOAI_GDEXTENSION
 
 void BehaviorTreeView::_draw_running_status(Object *p_obj, Rect2 p_rect) {
@@ -52,7 +54,7 @@ void BehaviorTreeView::_item_collapsed(Object *p_obj) {
 	if (!item) {
 		return;
 	}
-	int id = item->get_metadata(0);
+	uint64_t id = item->get_metadata(0);
 	bool collapsed = item->is_collapsed();
 	if (!collapsed_ids.has(id) && collapsed) {
 		collapsed_ids.push_back(item->get_metadata(0));
@@ -69,69 +71,137 @@ double BehaviorTreeView::_get_editor_scale() const {
 	}
 }
 
+inline void _item_set_elapsed_time(TreeItem *p_item, double p_elapsed) {
+	p_item->set_text(2, rtos(Math::snapped(p_elapsed, 0.01)).pad_decimals(2));
+}
+
 void BehaviorTreeView::update_tree(const Ref<BehaviorTreeData> &p_data) {
+	update_data = p_data;
+	update_pending = true;
+	_notification(NOTIFICATION_PROCESS);
+}
+
+void BehaviorTreeView::_update_tree(const Ref<BehaviorTreeData> &p_data) {
 	// Remember selected.
-	int selected_id = -1;
+	uint64_t selected_id = 0;
 	if (tree->get_selected()) {
 		selected_id = tree->get_selected()->get_metadata(0);
 	}
 
-	tree->clear();
-	TreeItem *parent = nullptr;
-	List<Pair<TreeItem *, int>> parents;
-	for (const BehaviorTreeData::TaskData &task_data : p_data->tasks) {
-		// Figure out parent.
-		parent = nullptr;
-		if (parents.size()) {
-			Pair<TreeItem *, int> &p = parents[0];
-			parent = p.first;
-			if (!(--p.second)) {
-				// No children left, remove it.
-				parents.pop_front();
+	if (last_root_id != 0 && p_data->tasks.size() > 0 && last_root_id == (uint64_t)p_data->tasks[0].id) {
+		// * Update tree.
+		// ! Update routine is built on assumption that the behavior tree does NOT mutate. With little work it could detect mutations.
+
+		TreeItem *item = tree->get_root();
+		int idx = 0;
+		while (item) {
+			ERR_FAIL_COND(idx >= p_data->tasks.size());
+
+			const BTTask::Status current_status = (BTTask::Status)p_data->tasks[idx].status;
+			const BTTask::Status last_status = VariantCaster<BTTask::Status>::cast(item->get_metadata(1));
+			const bool status_changed = last_status != p_data->tasks[idx].status;
+
+			if (status_changed) {
+				item->set_metadata(1, current_status);
+				if (current_status == BTTask::SUCCESS) {
+					item->set_custom_draw(0, this, LW_NAME(_draw_success_status));
+					item->set_icon(1, theme_cache.icon_success);
+				} else if (current_status == BTTask::FAILURE) {
+					item->set_custom_draw(0, this, LW_NAME(_draw_failure_status));
+					item->set_icon(1, theme_cache.icon_failure);
+				} else if (current_status == BTTask::RUNNING) {
+					item->set_custom_draw(0, this, LW_NAME(_draw_running_status));
+					item->set_icon(1, theme_cache.icon_running);
+				} else {
+					item->set_custom_draw(0, this, LW_NAME(_draw_fresh));
+					item->set_icon(1, nullptr);
+				}
 			}
+
+			if (status_changed || current_status == BTTask::RUNNING) {
+				_item_set_elapsed_time(item, p_data->tasks[idx].elapsed_time);
+			}
+
+			if (item->get_first_child()) {
+				item = item->get_first_child();
+			} else if (item->get_next()) {
+				item = item->get_next();
+			} else {
+				while (item) {
+					item = item->get_parent();
+					if (item && item->get_next()) {
+						item = item->get_next();
+						break;
+					}
+				}
+			}
+
+			idx += 1;
 		}
+		ERR_FAIL_COND(idx != p_data->tasks.size());
+	} else {
+		// * Create new tree.
 
-		TreeItem *item = tree->create_item(parent);
-		// Do this first because it resets properties of the cell...
-		item->set_cell_mode(0, TreeItem::CELL_MODE_CUSTOM);
-		item->set_cell_mode(1, TreeItem::CELL_MODE_ICON);
+		last_root_id = p_data->tasks.size() > 0 ? p_data->tasks[0].id : 0;
 
-		item->set_metadata(0, task_data.id);
+		tree->clear();
+		TreeItem *parent = nullptr;
+		List<Pair<TreeItem *, int>> parents;
+		for (const BehaviorTreeData::TaskData &task_data : p_data->tasks) {
+			// Figure out parent.
+			parent = nullptr;
+			if (parents.size()) {
+				Pair<TreeItem *, int> &p = parents[0];
+				parent = p.first;
+				if (!(--p.second)) {
+					// No children left, remove it.
+					parents.pop_front();
+				}
+			}
 
-		item->set_text(0, task_data.name);
-		if (task_data.is_custom_name) {
-			item->set_custom_font(0, theme_cache.font_custom_name);
-		}
+			TreeItem *item = tree->create_item(parent);
+			// Do this first because it resets properties of the cell...
+			item->set_cell_mode(0, TreeItem::CELL_MODE_CUSTOM);
+			item->set_cell_mode(1, TreeItem::CELL_MODE_ICON);
 
-		item->set_text_alignment(2, HORIZONTAL_ALIGNMENT_RIGHT);
-		item->set_text(2, rtos(Math::snapped(task_data.elapsed_time, 0.01)).pad_decimals(2));
+			item->set_metadata(0, task_data.id);
+			item->set_metadata(1, task_data.status);
 
-		String cors = (task_data.script_path.is_empty()) ? task_data.type_name : task_data.script_path;
-		item->set_icon(0, LimboUtility::get_singleton()->get_task_icon(cors));
-		item->set_icon_max_width(0, 16 * _get_editor_scale()); // Force user icon size.
+			item->set_text(0, task_data.name);
+			if (task_data.is_custom_name) {
+				item->set_custom_font(0, theme_cache.font_custom_name);
+			}
 
-		if (task_data.status == BTTask::SUCCESS) {
-			item->set_custom_draw(0, this, LW_NAME(_draw_success_status));
-			item->set_icon(1, theme_cache.icon_success);
-		} else if (task_data.status == BTTask::FAILURE) {
-			item->set_custom_draw(0, this, LW_NAME(_draw_failure_status));
-			item->set_icon(1, theme_cache.icon_failure);
-		} else if (task_data.status == BTTask::RUNNING) {
-			item->set_custom_draw(0, this, LW_NAME(_draw_running_status));
-			item->set_icon(1, theme_cache.icon_running);
-		}
+			item->set_text_alignment(2, HORIZONTAL_ALIGNMENT_RIGHT);
+			_item_set_elapsed_time(item, task_data.elapsed_time);
 
-		if (task_data.id == selected_id) {
-			tree->set_selected(item, 0);
-		}
+			String cors = (task_data.script_path.is_empty()) ? task_data.type_name : task_data.script_path;
+			item->set_icon(0, LimboUtility::get_singleton()->get_task_icon(cors));
+			item->set_icon_max_width(0, 16 * _get_editor_scale()); // Force user icon size.
 
-		if (collapsed_ids.has(task_data.id)) {
-			item->set_collapsed(true);
-		}
+			if (task_data.status == BTTask::SUCCESS) {
+				item->set_custom_draw(0, this, LW_NAME(_draw_success_status));
+				item->set_icon(1, theme_cache.icon_success);
+			} else if (task_data.status == BTTask::FAILURE) {
+				item->set_custom_draw(0, this, LW_NAME(_draw_failure_status));
+				item->set_icon(1, theme_cache.icon_failure);
+			} else if (task_data.status == BTTask::RUNNING) {
+				item->set_custom_draw(0, this, LW_NAME(_draw_running_status));
+				item->set_icon(1, theme_cache.icon_running);
+			}
 
-		// Add in front of parents stack if it expects children.
-		if (task_data.num_children) {
-			parents.push_front(Pair<TreeItem *, int>(item, task_data.num_children));
+			if (task_data.id == selected_id) {
+				tree->set_selected(item, 0);
+			}
+
+			if (collapsed_ids.has(task_data.id)) {
+				item->set_collapsed(true);
+			}
+
+			// Add in front of parents stack if children are expected.
+			if (task_data.num_children) {
+				parents.push_front(Pair<TreeItem *, int>(item, task_data.num_children));
+			}
 		}
 	}
 }
@@ -139,6 +209,7 @@ void BehaviorTreeView::update_tree(const Ref<BehaviorTreeData> &p_data) {
 void BehaviorTreeView::clear() {
 	tree->clear();
 	collapsed_ids.clear();
+	last_root_id = 0;
 }
 
 void BehaviorTreeView::_do_update_theme_item_cache() {
@@ -197,6 +268,17 @@ void BehaviorTreeView::_notification(int p_what) {
 		case NOTIFICATION_THEME_CHANGED: {
 			_do_update_theme_item_cache();
 		} break;
+		case NOTIFICATION_VISIBILITY_CHANGED: {
+			set_process(is_visible_in_tree());
+		} break;
+		case NOTIFICATION_PROCESS: {
+			int ticks_msec = Time::get_singleton()->get_ticks_msec();
+			if (update_pending && (ticks_msec - last_update_msec) >= update_interval_msec) {
+				_update_tree(update_data);
+				update_pending = false;
+				last_update_msec = ticks_msec;
+			}
+		} break;
 	}
 }
 
@@ -206,6 +288,10 @@ void BehaviorTreeView::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_draw_failure_status"), &BehaviorTreeView::_draw_failure_status);
 	ClassDB::bind_method(D_METHOD("_item_collapsed"), &BehaviorTreeView::_item_collapsed);
 	ClassDB::bind_method(D_METHOD("update_tree", "p_behavior_tree_data"), &BehaviorTreeView::update_tree);
+
+	ClassDB::bind_method(D_METHOD("set_update_interval_msec", "p_milliseconds"), &BehaviorTreeView::set_update_interval_msec);
+	ClassDB::bind_method(D_METHOD("get_update_interval_msec"), &BehaviorTreeView::get_update_interval_msec);
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "update_interval_msec"), "set_update_interval_msec", "get_update_interval_msec");
 }
 
 BehaviorTreeView::BehaviorTreeView() {
diff --git a/editor/debugger/behavior_tree_view.h b/editor/debugger/behavior_tree_view.h
index 49205f7..3194348 100644
--- a/editor/debugger/behavior_tree_view.h
+++ b/editor/debugger/behavior_tree_view.h
@@ -48,14 +48,23 @@ private:
 		Ref<Font> font_custom_name;
 	} theme_cache;
 
-	Vector<int> collapsed_ids;
+	Vector<uint64_t> collapsed_ids;
+	uint64_t last_root_id = 0;
+
+	int last_update_msec = 0;
+	int update_interval_msec = 0;
+	Ref<BehaviorTreeData> update_data;
+	bool update_pending = false;
 
 	void _draw_success_status(Object *p_obj, Rect2 p_rect);
 	void _draw_running_status(Object *p_obj, Rect2 p_rect);
 	void _draw_failure_status(Object *p_obj, Rect2 p_rect);
+	void _draw_fresh(Object *p_obj, Rect2 p_rect) {}
 	void _item_collapsed(Object *p_obj);
 	double _get_editor_scale() const;
 
+	void _update_tree(const Ref<BehaviorTreeData> &p_data);
+
 protected:
 	void _do_update_theme_item_cache();
 
@@ -64,8 +73,11 @@ protected:
 	static void _bind_methods();
 
 public:
-	void update_tree(const Ref<BehaviorTreeData> &p_data);
 	void clear();
+	void update_tree(const Ref<BehaviorTreeData> &p_data);
+
+	void set_update_interval_msec(int p_milliseconds) { update_interval_msec = p_milliseconds; }
+	int get_update_interval_msec() const { return update_interval_msec; }
 
 	BehaviorTreeView();
 };
diff --git a/editor/debugger/limbo_debugger_plugin.cpp b/editor/debugger/limbo_debugger_plugin.cpp
index 1067669..ad66841 100644
--- a/editor/debugger/limbo_debugger_plugin.cpp
+++ b/editor/debugger/limbo_debugger_plugin.cpp
@@ -16,6 +16,7 @@
 #include "../../bt/behavior_tree.h"
 #include "../../editor/debugger/behavior_tree_data.h"
 #include "../../editor/debugger/behavior_tree_view.h"
+#include "../../util/limbo_compat.h"
 #include "../../util/limbo_utility.h"
 #include "limbo_debugger.h"
 
@@ -29,6 +30,7 @@
 #include "core/string/ustring.h"
 #include "core/variant/array.h"
 #include "editor/editor_interface.h"
+#include "editor/editor_paths.h"
 #include "editor/editor_scale.h"
 #include "editor/filesystem_dock.h"
 #include "editor/plugins/editor_debugger_plugin.h"
@@ -37,16 +39,20 @@
 #include "scene/gui/item_list.h"
 #include "scene/gui/label.h"
 #include "scene/gui/line_edit.h"
+#include "scene/gui/separator.h"
 #include "scene/gui/split_container.h"
 #include "scene/gui/tab_container.h"
 #include "scene/gui/texture_rect.h"
 #endif // LIMBOAI_MODULE
 
 #ifdef LIMBOAI_GDEXTENSION
+#include <godot_cpp/classes/config_file.hpp>
 #include <godot_cpp/classes/editor_interface.hpp>
+#include <godot_cpp/classes/editor_paths.hpp>
 #include <godot_cpp/classes/file_system_dock.hpp>
 #include <godot_cpp/classes/resource_loader.hpp>
 #include <godot_cpp/classes/tab_container.hpp>
+#include <godot_cpp/classes/v_separator.hpp>
 #endif // LIMBOAI_GDEXTENSION
 
 //**** LimboDebuggerTab
@@ -180,6 +186,23 @@ void LimboDebuggerTab::_notification(int p_what) {
 			resource_header->connect(LW_NAME(pressed), callable_mp(this, &LimboDebuggerTab::_resource_header_pressed));
 			filter_players->connect(LW_NAME(text_changed), callable_mp(this, &LimboDebuggerTab::_filter_changed));
 			bt_player_list->connect(LW_NAME(item_selected), callable_mp(this, &LimboDebuggerTab::_bt_selected));
+			update_interval->connect("value_changed", callable_mp(bt_view, &BehaviorTreeView::set_update_interval_msec));
+
+			Ref<ConfigFile> cf;
+			cf.instantiate();
+			String conf_path = PROJECT_CONFIG_FILE();
+			if (cf->load(conf_path) == OK) {
+				Variant value = cf->get_value("debugger", "update_interval_msec", 0);
+				update_interval->set_value(value);
+			}
+		} break;
+		case NOTIFICATION_EXIT_TREE: {
+			Ref<ConfigFile> cf;
+			cf.instantiate();
+			String conf_path = PROJECT_CONFIG_FILE();
+			cf->load(conf_path);
+			cf->set_value("debugger", "update_interval_msec", update_interval->get_value());
+			cf->save(conf_path);
 		} break;
 		case NOTIFICATION_THEME_CHANGED: {
 			alert_icon->set_texture(get_theme_icon(LW_NAME(StatusWarning), LW_NAME(EditorIcons)));
@@ -195,7 +218,6 @@ void LimboDebuggerTab::setup(Ref<EditorDebuggerSession> p_session, CompatWindowW
 	if (p_wrapper->is_window_available()) {
 		make_floating = memnew(CompatScreenSelect);
 		make_floating->set_flat(true);
-		make_floating->set_h_size_flags(Control::SIZE_EXPAND | Control::SIZE_SHRINK_END);
 		make_floating->set_tooltip_text(TTR("Make the LimboAI Debugger floating."));
 		make_floating->connect(LW_NAME(request_open_in_screen), callable_mp(window_wrapper, &CompatWindowWrapper::enable_window_on_screen).bind(true));
 		toolbar->add_child(make_floating);
@@ -221,6 +243,22 @@ LimboDebuggerTab::LimboDebuggerTab() {
 	resource_header->set_tooltip_text(TTR("Debugged BehaviorTree resource.\nClick to open."));
 	resource_header->set_disabled(true);
 
+	Label *interval_label = memnew(Label);
+	toolbar->add_child(interval_label);
+	interval_label->set_text(TTR("Update Interval:"));
+	interval_label->set_h_size_flags(SIZE_EXPAND | SIZE_SHRINK_END);
+
+	update_interval = memnew(EditorSpinSlider);
+	toolbar->add_child(update_interval);
+	update_interval->set_min(0);
+	update_interval->set_max(1000);
+	update_interval->set_step(1.0);
+	update_interval->set_suffix("ms");
+	update_interval->set_custom_minimum_size(Vector2(100 * EDSCALE, 0));
+
+	VSeparator *sep = memnew(VSeparator);
+	toolbar->add_child(sep);
+
 	hsc = memnew(HSplitContainer);
 	hsc->set_h_size_flags(Control::SIZE_EXPAND_FILL);
 	hsc->set_v_size_flags(Control::SIZE_EXPAND_FILL);
diff --git a/editor/debugger/limbo_debugger_plugin.h b/editor/debugger/limbo_debugger_plugin.h
index 4c95432..bb02e45 100644
--- a/editor/debugger/limbo_debugger_plugin.h
+++ b/editor/debugger/limbo_debugger_plugin.h
@@ -22,6 +22,7 @@
 #include "core/object/class_db.h"
 #include "core/object/object.h"
 #include "core/typedefs.h"
+#include "editor/gui/editor_spin_slider.h"
 #include "editor/plugins/editor_debugger_plugin.h"
 #include "editor/window_wrapper.h"
 #include "scene/gui/box_container.h"
@@ -35,6 +36,7 @@
 #include <godot_cpp/classes/button.hpp>
 #include <godot_cpp/classes/editor_debugger_plugin.hpp>
 #include <godot_cpp/classes/editor_debugger_session.hpp>
+#include <godot_cpp/classes/editor_spin_slider.hpp>
 #include <godot_cpp/classes/h_box_container.hpp>
 #include <godot_cpp/classes/h_split_container.hpp>
 #include <godot_cpp/classes/item_list.hpp>
@@ -64,6 +66,7 @@ private:
 	LineEdit *filter_players = nullptr;
 	Button *resource_header = nullptr;
 	Button *make_floating = nullptr;
+	EditorSpinSlider *update_interval = nullptr;
 	CompatWindowWrapper *window_wrapper = nullptr;
 
 	void _reset_controls();
diff --git a/util/limbo_string_names.cpp b/util/limbo_string_names.cpp
index 097e008..6dd6092 100644
--- a/util/limbo_string_names.cpp
+++ b/util/limbo_string_names.cpp
@@ -28,6 +28,7 @@ LimboStringNames *LimboStringNames::singleton = nullptr;
 
 LimboStringNames::LimboStringNames() {
 	_draw_failure_status = SN("_draw_failure_status");
+	_draw_fresh = SN("_draw_fresh");
 	_draw_probability = SN("_draw_probability");
 	_draw_running_status = SN("_draw_running_status");
 	_draw_success_status = SN("_draw_success_status");
diff --git a/util/limbo_string_names.h b/util/limbo_string_names.h
index 35aeace..6111c0a 100644
--- a/util/limbo_string_names.h
+++ b/util/limbo_string_names.h
@@ -42,6 +42,7 @@ public:
 	_FORCE_INLINE_ static LimboStringNames *get_singleton() { return singleton; }
 
 	StringName _draw_failure_status;
+	StringName _draw_fresh;
 	StringName _draw_probability;
 	StringName _draw_running_status;
 	StringName _draw_success_status;