When creating an elliptical wall with multiple layers, you may notice that Revit's performance is slow when the view's detail level is set to Fine.
Issue: Revit performance is slow when creating an elliptical wall with multiple layers in a view with the detail level set to Fine.
Solution: To improve performance in creating elliptical walls with multiple layers, temporarily change the view detail level to Coarse. When you have finished creating the elliptical wall, you can change the detail level back to Fine.