### Godot version

Godot 4.1-beta2

### System information

Manjaro Gnome, Intel Core i7-11800H

### Issue description

On a relatively modern laptop (Intel Core i7-11800H), in a scene with many scripted nodes (total of 900+ with roughly half of them scripted), adding or duplicating a node freezes the editor for several seconds. Godot 4.0.2 handles such scenes much better!

Here is a flame graph captured while repeatedly duplicating simple Marker2D nodes with Ctrl+D in a complicated scene:
![Screenshot from 2023-06-15 23-54-38](https://github.com/godotengine/godot/assets/2766569/d0019f17-9b82-4a26-9b47-71fa7a3bef3a)

Performance data file to use with hotspot v1.4.1 (relevant data starts at the 75-second mark and lasts about 20+ seconds):
[perf.data.perfparser.zip](https://github.com/godotengine/godot/files/11763700/perf.data.perfparser.zip)



### Steps to reproduce

1) Add 1000 nodes with a script attached.
2) Duplicate a node and witness lags.

Also affects scrolling the scene tree dock.

### Minimal reproduction project

[add_node_lags_repro.zip](https://github.com/godotengine/godot/files/11763731/add_node_lags_repro.zip)

}
		InspectorDock::get_inspector_singleton()->edit(current_obj);
		NodeDock::get_singleton()->set_node(nullptr);
		SceneTreeDock::get_singleton()->set_selected(selected_node);
		InspectorDock::get_singleton()->update(nullptr);
	}
	if (current_obj == prev_inspected_object) {
		
		InspectorDock::get_inspector_singleton()->update_tree();
	}
	InspectorDock::get_singleton()->set_info(
			info_is_warning ? TTR("Changes may be lost!") : TTR("This object is read-only."),
			editable_info,
			info_is_warning);
	if (InspectorDock::get_inspector_singleton()->is_using_folding() == disable_folding) {
		InspectorDock::get_inspector_singleton()->set_use_folding(!disable_folding);
	}
	Object *editor_owner = is_node ? (Object *)SceneTreeDock::get_singleton() : is_resource ? (Object *)InspectorDock::get_inspector_singleton()
																							: (Object *)this;
	
	if (!inspector_only) {
		EditorPlugin *main_plugin = editor_data.get_editor(current_obj);
		int plugin_index = 0;
		for (; plugin_index < editor_table.size(); plugin_index++) {
			if (editor_table[plugin_index] == main_plugin) {
				if (!main_editor_buttons[plugin_index]->is_visible()) {
					main_plugin = nullptr; 
				}
				break;
			}