I have a latency issue when scratching. It will glitch and freeze, and then skip. It doesn't scratch smoothly. I also have an issue with tracking problems. About every 15 minutes one of my decks will completely slow down like it caught a mega piece of dust. I constantly clean my needles, and when it does this I check them and there is no dust on them. My wax is good too. I've actually replaced my cartridges from Ortofon DJ-s to M44-7s, and bought new vinyl but still have the problem. It happens at my house, and 2 different venues I spin at. The same problem happens with the clubs tables and their mixers, and my tables and my sixty-one. The clubs I spin at have TTM-57s and one has MK2s and the other has MK5s. I'm running MK3s.

I have a rane sixty-one mixer, and am using scratch live 2.4.1

My computer is a MacBook Pro 2.53ghz with 4GB of RAM

I know how to calibrate my setup, that's all good.

My USB buffer is set to 2

I have my airport and bluetooth off

I have energy saver off, as well as widgets

I have no clue what's wrong, but I'm thinking it's a software issue.