A down aileron produces more drag than an upward deflecting one. So if you are rolling to the right the left hand aileron goes down and produces more drag and it pulls the nose opposite the turn, a situation called adverse yaw.

So you can either tinker with the linkages or take 30 seconds to set it up in your radio such that the downward ailerons dont deflect as far. Forutanetly they know what we want so there's a pre-configured mix and you just tell it what percentage and give it a shot starting small and working your way up.

You can also counter it by adding a bit of rudder in a coordinated turn.

Not all planes need it.