### 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)

actions.render_mode_values["alpha_to_coverage_and_one"] = Pair<int *, int>(&alpha_antialiasing_modei, ALPHA_ANTIALIASING_ALPHA_TO_COVERAGE_AND_TO_ONE);
	actions.render_mode_values["depth_draw_never"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_DISABLED);
	actions.render_mode_values["depth_draw_opaque"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_OPAQUE);
	actions.render_mode_values["depth_draw_always"] = Pair<int *, int>(&depth_drawi, DEPTH_DRAW_ALWAYS);
	actions.render_mode_values["depth_test_disabled"] = Pair<int *, int>(&depth_testi, DEPTH_TEST_DISABLED);
	actions.render_mode_values["cull_disabled"] = Pair<int *, int>(&cull_modei, CULL_DISABLED);
	actions.render_mode_values["cull_front"] = Pair<int *, int>(&cull_modei, CULL_FRONT);
	actions.render_mode_values["cull_back"] = Pair<int *, int>(&cull_modei, CULL_BACK);
	actions.render_mode_flags["unshaded"] = &unshaded;
	actions.render_mode_flags["wireframe"] = &wireframe;
	actions.render_mode_flags["particle_trails"] = &uses_particle_trails;
	actions.render_mode_flags["world_vertex_coords"] = &uses_world_coordinates;
	actions.usage_flag_pointers["ALPHA"] = &uses_alpha;
	actions.usage_flag_pointers["ALPHA_SCISSOR_THRESHOLD"] = &uses_alpha_clip;
	
	
	actions.usage_flag_pointers["ALPHA_HASH_SCALE"] = &uses_alpha_clip;
	actions.render_mode_flags["depth_prepass_alpha"] = &uses_depth_prepass_alpha;
	actions.usage_flag_pointers["SSS_STRENGTH"] = &uses_sss;
	actions.usage_flag_pointers["SSS_TRANSMITTANCE_DEPTH"] = &uses_transmittance;
	actions.usage_flag_pointers["DISCARD"] = &uses_discard;
	actions.usage_flag_pointers["TIME"] = &uses_time;
	actions.usage_flag_pointers["ROUGHNESS"] = &uses_roughness;
	actions.usage_flag_pointers["NORMAL"] = &uses_normal;
	actions.usage_flag_pointers["NORMAL_MAP"] = &uses_normal;
	actions.usage_flag_pointers["POINT_SIZE"] = &uses_point_size;
	actions.usage_flag_pointers["POINT_COORD"] = &uses_point_size;
	actions.write_flag_pointers["MODELVIEW_MATRIX"] = &writes_modelview_or_projection;
	actions.write_flag_pointers["PROJECTION_MATRIX"] = &writes_modelview_or_projection;
	actions.write_flag_pointers["VERTEX"] = &uses_vertex;