I have that very table and it is spot on speed-wise. Hopefully, it is just the belt. Otherwise I'm not sure what the fix would be. I DID have a hard time when I switched over to a 33/78 pulley because the motor was 50 hertz instead of 60 like I was told it was. So..maybe that could be the issue and you have the wrong pulley. If you're dealing with Bes over there at Music Direct, you're in good hands though.