Each point in a toposurface creates triangulated geometry, which adds to the computational overhead. When a toposurface is created using a large number of points, you can simplify the surface to improve system performance. When a toposurface is simplified, the accuracy and geometry of the contours may be affected depending on the specific conditions of the toposurface. After a toposurface has been simplified, verify the contours and geometry. Add points for accuracy if needed.

 Surface panel
Surface panel
 (Edit Surface).
 (Edit Surface). 
   Tools panel
Tools panel
 (Simplify Surface).
 (Simplify Surface). 
   (Finish Surface).
 (Finish Surface).