I am a new sabayon user, previously I had OpenSuse 10.2. and compiz-fusion worked perfectly. I have the new 3.4a version of sabayon, and I cannot activate compiz-fusion in any way

If I enable 3D acceleration, the system becomes slooow as a snail, windows open forever... And I lose the the windows decorations - this happens in case of both Emerald and Kwin. Any suggestions?