Still using my iPad 4 back from 2012, and to be fair it's slow as a lorry now, can barely play a decent FPS without lag, plus it has battery issues. my question is, should i upgrade to the Mini 4 or the air 2? I know that the Air 2 has better performance, and that apple probably will skip it this year, but the Mini 4 does seem much better than my current device and it's portability and slightly lower price is tempting me. i also feel troubled by a thread in the forum where many users reported lag while gaming with the mini 4. Could people advice me which ipad to get? i am looking to use the iPad for studies (powerpoint, editing) and also leisure gaming. Thank you.