Extrude very slow in v3 beta

 From:  coi (MARCO)
6455.6 In reply to 6455.4 
quote:
My experience is, using a lot of NURBS surfaces slows down the rendering and manipulating


did you increase your viewport mesh angle(initial would be 10)? you could also uncheck "Add details to inflections" and "Display hidden lines", which should definitely improve the overall handling.