### 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)

int32_t prev_chunk = -1;
	for (int32_t i = 0; i < p_elements; i++) {
		int32_t chunk = (p_index + i) / GlobalShaderUniforms::BUFFER_DIRTY_REGION_SIZE;
		if (chunk != prev_chunk) {
			if (!global_shader_uniforms.buffer_dirty_regions[chunk]) {
				global_shader_uniforms.buffer_dirty_regions[chunk] = true;
				global_shader_uniforms.buffer_dirty_region_count++;
			}
		}
		prev_chunk = chunk;
	}
}
void MaterialStorage::global_shader_parameter_add(const StringName &p_name, RS::GlobalShaderParameterType p_type, const Variant &p_value) {