slow sunroof

i was just wondering how to speed up my sunroof... it opens really slow... so slow sometimes that it stops midway and i have to hit the button again... and that happens when i go to close it too.

That might be the way it opens. I dont have a sunroof on mine but my girls corolla opens halfway stops and you have to hit the button again to finish opening. Then does the same thing while closing. Kinda annoying but watcha gonna do.