For your information, the natty version moved to compiz for that reason. You can try it on an usb stick to see what it looks like on your computer.
** Changed in: unity (Ubuntu) Status: New => Triaged ** Changed in: unity (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/688854 Title: [nvidia] unity extremely slow (mutter 100% cpu) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs