You can enable optimized view navigation on the Graphics tab of the Options dialog.
When you enable this option, Vasari temporarily suspends certain features that affect the display of the model. This option improves performance when you are navigating a 2D view or a 3D view in ways that manipulate the camera, including the following:
- ViewCube
- Navigation bar
- 3DConnexion 3D mouse
- Keyboard shortcuts related to view navigation
- Scrolling with the mouse wheel
The following table lists the graphic effects that are temporarily suspended 
for each visual style when the Optimized View Navigation option is enabled and the camera is being manipulated. (When the camera is not being manipulated, the view displays the graphic effects as usual.)
| Hidden Line style | Shaded style | Consistent Colors style | Realistic style | |
|---|---|---|---|---|
| Edges |
|
|
|
|
| Fill patterns |
|
|
|
|
| Shadows |
|
|
|
|
| Ambient shadows |
|
|
|
|
| Mechanical hidden lines |
|
|
|
|
| Structural hidden lines |
|
|
|
|
Note: In wireframe views, fill patterns are suspended when the camera is being manipulated.