To speed up mouse rotation for 3D models, adjust the "rotation sensitivity" or "mouse speed" setting in your 3D software (e.g., Blender, Maya, SolidWorks)—this directly controls how fast the model spins when you drag the mouse.
**Locate the setting**: Find it in menus like "Preferences" > "Input" or "Mouse"—most tools place rotation speed here for quick access. **Use keyboard modifiers**: Hold Shift (or similar) for temporary faster rotation in many programs—handy for quick tweaks without changing settings. **Adjust gradually**: Increase sensitivity little by little—too high causes jitter. For example, in Blender: Go to *Edit > Preferences > Input > Mouse* and raise the "Rotation Speed" slider.