### 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)

} else {
						attribs[i].size = 3;
						position_stride = attribs[i].size * sizeof(float);
					}
				}
			} break;
			case RS::ARRAY_NORMAL: {
				if (!mis && (s->format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES)) {
					attribs[i].size = 2;
					normal_tangent_stride += 2 * attribs[i].size;
				} else {
					attribs[i].size = 4;
					
					
					
					if (!(s->format & RS::ARRAY_FORMAT_TANGENT)) {
						normal_tangent_stride += (mis ? sizeof(float) : sizeof(uint16_t)) * 2;
					} else {
						normal_tangent_stride += (mis ? sizeof(float) : sizeof(uint16_t)) * 4;
					}
				}
				if (mis) {
					
					attribs[i].offset = position_stride;
					normal_tangent_stride += position_stride;
					position_stride = normal_tangent_stride;
				} else {
					attribs[i].offset = position_stride * s->vertex_count;
				}
				attribs[i].type = (mis ? GL_FLOAT : GL_UNSIGNED_SHORT);