To speed up transform operations (move, rotate, scale) for 3D models in Blender, focus on reducing viewport complexity and optimizing tool settings—this is the core solution.
- Hide unused objects (press H) or use collections to toggle visibility: fewer on-screen objects mean less data to process. - Switch to Solid or Wireframe mode (Ctrl+Tab): these modes skip render-heavy previews (like Eevee/Cycles) to cut load. - Disable subsurface subdivision previews (Object Data > Subdivision Surface): this turns off real-time smoothing, removing extra calculations. - Turn off snapping (Shift+Tab) if it lags: snapping adds computation that can slow dragging.
For high-poly models, use a simplified proxy: duplicate the model, decimate it, and transform the proxy. This keeps interactions smooth without altering the original high-poly mesh.