Graal lags on my Mac.

[Vima]

Graal is really laggy on my mac.
I've got a mac mini, not the best computer... but if it handles watching movies in HD, Playing Counter-Strike; Graal shouldn't be any problem.
I've tried to play Graal on Windows XP "Parallels" & just on the "mac".
Doesn't matter, both lags.

When I play Graal it feels like my character is 0.5-1sec "behind" so it's impossible to spar and takes ages to walk.

Does anyone else have this problem? Or is it just me?
Is it fixable with possibly some changes on my graal client?