### 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)

editor_plugins.push_back(p_object);
}
void EditorSelection::_update_node_list() {
	if (!node_list_changed) {
		return;
	}
	selected_node_list.clear();
	
	
	
	for (const KeyValue<Node *, Object *> &E : selection) {
		Node *parent = E.key;
		parent = parent->get_parent();
		bool skip = false;
		while (parent) {
			if (selection.has(parent)) {
				skip = true;
				break;
			}
			parent = parent->get_parent();
		}
		if (skip) {
			continue;
		}
		selected_node_list.push_back(E.key);
	}
	node_list_changed = true;
}
void EditorSelection::update() {