### 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)

} break;
		case ShaderLanguage::TYPE_MAT3: {
			memset(data, 0, 48 * p_array_size);
		} break;
		case ShaderLanguage::TYPE_MAT4: {
			memset(data, 0, 64 * p_array_size);
		} break;
		default: {
		}
	}
}
void ShaderData::set_path_hint(const String &p_hint) {
	path = p_hint;
}
void ShaderData::set_default_texture_parameter(const StringName &p_name, RID p_texture, int p_index) {
	if (!p_texture.is_valid()) {
		if (default_texture_params.has(p_name) && default_texture_params[p_name].has(p_index)) {
			default_texture_params[p_name].erase(p_index);
			if (default_texture_params[p_name].is_empty()) {
				default_texture_params.erase(p_name);
			}
		}
	} else {
		if (!default_texture_params.has(p_name)) {
			default_texture_params[p_name] = HashMap<int, RID>();
		}
		default_texture_params[p_name][p_index] = p_texture;
	}
}
Variant ShaderData::get_default_parameter(const StringName &p_parameter) const {