### Godot version

v4.1.stable.mono.official [970459615]

### System information

Godot v4.1.stable.mono - Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1050 Ti (NVIDIA; 31.0.15.3179) - AMD Ryzen 3 3200G with Radeon Vega Graphics (4 Threads)

### Issue description

I have a scene with a large amount of InstanceMesh3D, StaticBody3D which are in a Map node. This scene does not cause any lags for me, but as soon as I expand the Map node, my scene starts to lag and it is impossible to work with the project at all. Before that I moved my project from 4.0.2.stable to 4.1.stable. The previous version did not cause such problems.

### Steps to reproduce

Create a scene of over +500 MeshInstance3D with any shape that is in a Node3D node. Try to open and close Node3D and you will see the performance drop.

### Minimal reproduction project

N/A
if (htotal >= 0) {
							RenderingServer::get_singleton()->canvas_item_add_line(ci, root_pos, Point2i(parent_pos.x + Math::floor(parent_line_width / 2), root_pos.y), theme_cache.parent_hl_line_color, parent_line_width);
						}
						RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2i(parent_pos.x, root_pos.y + Math::floor(parent_line_width / 2)), Point2i(parent_pos.x, prev_hl_ofs), theme_cache.parent_hl_line_color, parent_line_width);
						more_prev_ofs = theme_cache.parent_hl_line_margin;
						prev_hl_ofs = root_pos.y + Math::floor(parent_line_width / 2);
					} else if (p_item->is_selected(0)) {
						
						
						if (_is_sibling_branch_selected(c)) {
							if (htotal >= 0) {
								RenderingServer::get_singleton()->canvas_item_add_line(ci, root_pos, Point2i(parent_pos.x + Math::floor(parent_line_width / 2), root_pos.y), theme_cache.children_hl_line_color, children_line_width);
							}
							RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2i(parent_pos.x, root_pos.y + Math::floor(parent_line_width / 2)), Point2i(parent_pos.x, prev_hl_ofs), theme_cache.parent_hl_line_color, parent_line_width);
							prev_hl_ofs = root_pos.y + Math::floor(parent_line_width / 2);
						} else {
							if (htotal >= 0) {
								RenderingServer::get_singleton()->canvas_item_add_line(ci, root_pos, Point2i(parent_pos.x + Math::floor(children_line_width / 2), root_pos.y), theme_cache.children_hl_line_color, children_line_width);
							}
							RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2i(parent_pos.x, root_pos.y + Math::floor(children_line_width / 2)), Point2i(parent_pos.x, prev_ofs + Math::floor(children_line_width / 2)), theme_cache.children_hl_line_color, children_line_width);
						}
					} else {
						
						
						if (_is_sibling_branch_selected(c)) {
							if (htotal >= 0) {
								RenderingServer::get_singleton()->canvas_item_add_line(ci, root_pos, Point2i(parent_pos.x + theme_cache.parent_hl_line_margin, root_pos.y), theme_cache.relationship_line_color, line_width);
							}
							RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2i(parent_pos.x, root_pos.y + Math::floor(parent_line_width / 2)), Point2i(parent_pos.x, prev_hl_ofs), theme_cache.parent_hl_line_color, parent_line_width);