A/C compressor clutch hardly moves

My A/C belt snapped on me a few weeks ago, so i got a gatorback one from autozone. It was pretty tight but they said it was the right one. The A/C worked after i put it on and then all of a sudden it stopped. Fast forward to last week. I was going down the road and the belt shredded. So i got a new one today and put it in and now when i turn on the a/c the clutch will spin VERY slowly and sometimes come to a stop. This happens no matter what speed the engine is at. Could it be the clutch is going bad? Or maybe im low on refigerant? Any help would be appreciated!