Yeah, not good. I got it a bit better, when turning the sensitivity down, and then just working faster on the wheels. Kinda like moving the wheel resolution to a faster momentum. A bit better, but not like Apple Color, which blew me away with it’s responsiveness first time I booted it on my Mac Pro.
BTW, for hardware I´m running GTX286 and 120GT combo. On a late 2009 Mac Pro with Apple Raid.