This is one of the most frustrating things in Revit. I'm not a software developer, so maybe I'm missing something — but the constant regeneration of graphics during basic tasks is maddening. Drawing lines, adding dimensions, switching a view template to "None", placing a section line — these are simple actions, and yet Revit freezes to regenerate graphics even when nothing is being modeled.
It’s especially painful when working with large linked models. Snapping to geometry in a linked STEP or SAT file requires the patience of a saint. And no, accelerated graphics does not help. It is pretty useless when you need to get things done fast, constantly activating each view and each time something changes. In fact it’s unusable in these scenarios.