### 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)

for (int i = 0; i < editor_plugins.size(); i++) {
		editor_plugins[i]->set_window_layout(p_layout);
	}
}
void EditorData::get_plugin_window_layout(Ref<ConfigFile> p_layout) {
	for (int i = 0; i < editor_plugins.size(); i++) {
		editor_plugins[i]->get_window_layout(p_layout);
	}
}
bool EditorData::script_class_is_parent(const String &p_class, const String &p_inherits) {
	if (!ScriptServer::is_global_class(p_class)) {
		return false;
	}
	String base = p_class;
	while (base != p_inherits) {
		if (ClassDB::class_exists(base)) {
			return ClassDB::is_parent_class(base, p_inherits);
		} else if (ScriptServer::is_global_class(base)) {
			base = ScriptServer::get_global_class_base(base);
		} else {
			return false;
		}
	}
	return true;
}
StringName EditorData::script_class_get_base(const String &p_class) const {