Enable accelerated graphics in specific views of your model.
Use accelerated graphics to zoom, pan or rotate your model in a faster way. Once you get to the area of interest, in these accelerated views you can further create new items or make changes.
New and existing views are not in accelerated mode unless enabled in the current session of Revit. Using accelerated graphics does not modify the model in any way. The accelerated state is turned off between sessions of Revit and is not saved when the model is saved or closed.
To enable accelerated graphics:
Exit the accelerated graphics mode by disabling from the onscreen menu, the right-click menu, close the view, or close the model.