zuperman wrote: not as far as i know. Android had a different issue, their problem was with the smoke and I thought that would be the case with Apple too. But it is not the case. Right now you can basically disable the smoke and it still will happen.
What's odd is that it happen randomly, because as I say, my personal phone is an iphone 4 and I play no problem 
I must say that the smoke issue has now been sorted for ipad 1, which wasn't clear by the time of my earlier post, and that massively improves the gameplay - thanks zuperman!
The control loss isn't random as such... It seems to happen when there are a number of other aircraft in the immediate vicinity. Oddly, they don't seem to have to be on screen. I can best describe it as like the frame rate issue, but for control. So if you make an input, it's as though it receives the command and then 'lags' as if you were holding in that position for several seconds, then it registers the next one, holding that for several seconds, and so on. Sometimes the 'frame rate' is so slow it rolls you into the ground before it can accept a new input.
The natural reaction when the aircraft fails to respond to a control input is to keep trying, so you can end up with a sort of 'see-saw' effect where you are chasing the aircraft, and probably making things worse.