There is nothing to change, it is just the normal way it works.
Look at the slider next to the track in your Traktor deck – once you press sync, you will recognize the bar will dim a bit and jump a minor or major part above or under the center (center = original tempo of the track!) of the slider.
If you turn of sync now, you will see the slider does NOT move, it stays the “synced” tempo.
Logically, if you move your (hardware) slider fader now, it will move the tempo slider the distance you moved it plus (!) the distance traktor has corrected when it synced the track (spoken in visual terms 😉 ).
Only solution I could imagine would be to move the (hardware) fader to the approximate position it has in sync, turn off sync, and move from there.
Other question: If you can beatmatch, why use snyc? You could also decline or increase the master tempo and all decks will act accordingly.
Hope I could help!
Cheers!
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