Your camera 3D model lags in Cinema 4D mainly due to three issues: high polygon density, unoptimized textures, or insufficient hardware (CPU/GPU/RAM).
- **High polygons**: More vertices mean the software processes more data per frame, slowing navigation. - **Unoptimized textures**: Large, uncompressed files increase preview load and drain resources. - **Weak hardware**: If your CPU/GPU/RAM can’t handle the model’s complexity, lag is inevitable.
Fix it quickly by using Cinema 4D’s "Polygon Reduction" tool to lower polygon count or resizing textures to smaller resolutions—these steps cut lag fast.