That's not true I can handle your typical alice world just fine. Skywarrior runs on mine if you need an example. This game is just too massive for the typical computer (that alice users have) to handle. Unless your computer is more powerful it will probably lag. Especially since there's just so much stuff, so much sound and music, and so much bugs with the mouselook that involve the camera flying out of control.
Yes this game lags.
Yes we all hope Halo 2/debussybunnies Halo Reach will be better. Now jedi has learned what went wrong and what he needs to fix and we need to stop bothering him now. Ok guys?