Libretto wrote on Jan 10^th, 2013 at 2:01pm:

Make one extra view on your monitor and make it reaar view. Now see what it does to your framerate.

Exactly!
With the fact that the CS777 already eats a lot of fps, do you really want a view that DOES show you what is outside the plane at that very moment? I don't. I would rather that the framerates were to remain where they already are, or to be improved, not hit harder! ;)