Hi, i have installed Ubuntu 12.04 on my Intel Core i7 4GBram (DDR3 1333), Gigabyte H55M-USB3, ATi HD4890 and I got really poor performance on ALL effects of unity after opening a small JPG of 1mb with gnome image viewer!
The fact is that after opening some aplications (in this case the image viewer) the overall desktop performance is really poor (I mean 5 to 7 FPS!!!!!!!!!)
Is there something I can do to fix that?, I really dont want to switch to jollycloud or Fedora, but, man, this issues come since inmemorial thimes!
Remember, I have a u$s250 (at launch time) graphics card, so my hardware is not the problem.
Please, really need some good advise to solve this.
PS: ti fix it, I have to kill compiz