I can leave OpenGL on, but turning off the background thread is a must for me. Although, Vue's OpenGL implementation can't make up it's whether it wants to speed up the view panes or not ...

Seemingly at random it will slow down -- even just panning around a simple object. And other times moving the camera around a scene is very fluid, with multiple complex objects.

I DO notice that maximizing the main view (or any of the other views) speeds up the display considerably. Which, of course, make sense.