Pitch bend skips djay2

I have a setup of 2 separate iPad 2’s hooked up to a hardware mixer, in a classic way of mixing. Version 2.8.1, iOS 9.2.1
Since I don’t use the sync function, I always manually beat match my tracks(this means I use the pitch bend buttons frequently). The problem is that every once in a while the pitch bend function tends to skip half a beat if I press it too often… This will mess up a mix and I always have to be very careful about this. It’s a problem that has persisted since I first starting using the app for iPad a couple years ago.
I’d really appreciate if this can get corrected in a future update.