adjusting framerate/reducing lag?

[Avogadro]

If it's not specific to RO, it sounds like a graphics card problem. What graphics card are you using? If I had to make a guess, you're running on a laptop with no dedicated graphics memory that borrows from your system ram. Not the easiest thing to "fix", however.

And I'm going to agree with Mass: I used to run RO just fine on an old Athlon 700, but with a decent enough ATI card that there were never issues. Processor is pretty much irrelevant to this problem.