### 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)

ERR_FAIL_INDEX_V(p_idx, edited_scene.size(), String());
	if (!edited_scene[p_idx].root) {
		return TTR("[empty]");
	}
	if (edited_scene[p_idx].root->get_scene_file_path().is_empty()) {
		return TTR("[unsaved]");
	}
	const String filename = edited_scene[p_idx].root->get_scene_file_path().get_file();
	const String basename = filename.get_basename();
	if (p_always_strip_extension) {
		return basename;
	}
	
	for (int i = 0; i < edited_scene.size(); i++) {
		if (i == p_idx) {
			
			continue;
		}
		if (edited_scene[i].root && basename == edited_scene[i].root->get_scene_file_path().get_file().get_basename()) {
			return filename;
		}
	}
	
	return basename;
}
void EditorData::set_scene_path(int p_idx, const String &p_path) {