Not at all. Actually, I'm pretty sure it's faster than when I use XP with the latest intel drivers on the same machine. Plus it doesn't crash, so...This sounds like hardware acceleration is turned off for Google Earth, but you don't experience it as slow?
Anyway, first of all, make sure hardware acceleration is on and working correctly for other applications. Do "glxinfo | grep direct" from aterminal.
direct rendering: YES Thanks, Tyle