I've been having the same problem with the scrolling being choppy... I have a stable frame rate of 60fps but when I turn my ship in any direction it gets really choppy, even though it still says 60fps. I turned vsync off and it runs a lot better (120fps... but a little clippy just because of the fact that vsync is off), which is strange because my computer is pretty good (6GB RAM, GeForce 9800 GT, Intel Core Quad @ 2.33 GHz each), and I also run 3.6.10 on my other PC which is a lot crappier than this one and it runs great with vsync on.
Anyways, maybe try running the game without vsync. Works for me, and the clipping isn't too noticeable most of the time.