### Godot version

v4.2.beta1.official [b1371806a]

### System information

Ubuntu 22.04.3 LTS 22.04 - X11 - GLES3 (Compatibility) - AMD Radeon RX 560 Series (polaris11, LLVM 15.0.7, DRM 3.42, 5.15.0-88-generic) () - AMD Ryzen 3 1200 Quad-Core Processor (4 Threads)

### Issue description

![image](https://github.com/godotengine/godot/assets/1330325/7a986599-5a68-42a4-beb1-5d3b4bf7db6b)
![image](https://github.com/godotengine/godot/assets/1330325/e8b8546b-b47b-4add-9567-7f70709ab03c)

Culling 3D goes bellow 60 fps even with just about 50 simple animated models. With v4.2.dev6.official [57a6813bb] many more models can be spawned without fps drop. However, both versions do show high cpu usage for culling 3D. Without animations there's barely any usage.

### Steps to reproduce

Spawn models with animation with the Compatibility renderer.

### Minimal reproduction project

[CullMRP.zip](https://github.com/godotengine/godot/files/13400514/CullMRP.zip)

if (mesh->blend_shape_count) {
			for (uint32_t j = 0; j < mesh->blend_shape_count; j++) {
				if (s.blend_shapes[j].vertex_buffer != 0) {
					GLES3::Utilities::get_singleton()->buffer_free_data(s.blend_shapes[j].vertex_buffer);
					s.blend_shapes[j].vertex_buffer = 0;
				}
				if (s.blend_shapes[j].vertex_array != 0) {
					glDeleteVertexArrays(1, &s.blend_shapes[j].vertex_array);
					s.blend_shapes[j].vertex_array = 0;
				}
			}
			memdelete_arr(s.blend_shapes);
		}
		memdelete(mesh->surfaces[i]);
	}
	if (mesh->surfaces) {
		memfree(mesh->surfaces);
	}
	mesh->surfaces = nullptr;
	mesh->surface_count = 0;
	mesh->material_cache.clear();
	mesh->has_bone_weights = false;
	mesh->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MESH);
	for (Mesh *E : mesh->shadow_owners) {
		Mesh *shadow_owner = E;
		shadow_owner->shadow_mesh = RID();
		shadow_owner->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MESH);
	}
}
void MeshStorage::_mesh_surface_generate_version_for_input_mask(Mesh::Surface::Version &v, Mesh::Surface *s, uint64_t p_input_mask, MeshInstance::Surface *mis) {