### 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 (!global_shader_uniforms.variables.has(p_name)) {
		return RS::GLOBAL_VAR_TYPE_MAX;
	}
	return global_shader_uniforms.variables[p_name].type;
}
RS::GlobalShaderParameterType MaterialStorage::global_shader_parameter_get_type(const StringName &p_name) const {
	if (!Engine::get_singleton()->is_editor_hint()) {
		ERR_FAIL_V_MSG(RS::GLOBAL_VAR_TYPE_MAX, "This function should never be used outside the editor, it can severely damage performance.");
	}
	return global_shader_parameter_get_type_internal(p_name);
}
void MaterialStorage::global_shader_parameters_load_settings(bool p_load_textures) {
	List<PropertyInfo> settings;
	ProjectSettings::get_singleton()->get_property_list(&settings);
	for (const PropertyInfo &E : settings) {
		if (E.name.begins_with("shader_globals/")) {
			StringName name = E.name.get_slice("/", 1);
			Dictionary d = GLOBAL_GET(E.name);
			ERR_CONTINUE(!d.has("type"));
			ERR_CONTINUE(!d.has("value"));
			String type = d["type"];
			static const char *global_var_type_names[RS::GLOBAL_VAR_TYPE_MAX] = {
				"bool",