Reply to Audio 8 Problems Moving bpm

Hi Guys Really need your help here you could save me pounds
Im running 2x sl1200 1x pioneer Djm700 Traktor Latest version

The problem is when using time code the right deck or left slurs from 121.00 bpm 122.00 bpm then goes back to its real bpm i don't use sync so this becomes a problem it happens every 10min iv'e tried changing drivers etc still having same problem not sure if its a fault with sound card or not every thing is working perfect except this please help really cant afford a audio 10 at the min .