My workstation is a Dell Precision T5610, Xeon 3.5 GHz, 4 cores, Windows 10 Pro, 16Gb Ram, Nvidia Quadro K4000. 

SW2018 is very slow when selecting and editing views and dimensions.  Tech support helped tweak my system, but still haven't seen a difference.

I'm also using a wireless mouse (Logitech G602) and a 3DConnexion SpaceNavigator.