Reply to Pioneer DDJ-SX headphone cueing off sync with master

Forgive me if someone has already talked about this. I tried to search the community s and on google but couldn't find anything. I just got the DDJ-SX a little bit ago and something has really been bothering me about it. It seems to me that what plays in my headphones when I'm cueing is just a little bit off of whats playing live. I thought it might be my headphones so I got a different pair. same problem. Anyone else have this problem? Is there some adjustment I'm missing somewhere? It does it on both serato and traktor. If anyone has some tips that would be great.