The DisplayQuality command controls how smooth Circles and curves are displayed.
Specify the view resolution of Circles, Arcs, Ellipses, and Splines by a circle zoom percent value. As you increase the value, the smoother the appearance of the Circle or curves.
To set the display quality of Circles and curves:
The prompt asks if you want fast zooms. This prompt is irrelevant and provided to maintain compatibility of scripts.
Access
Command: DisplayQuality