Hi, I have an iPad Air 2 which still is on iOS 8. I don't like to upgrade to unfinished versions. That's the reason I've been stuck on iOS 8, but, given that iOS 9 seems to have reached its latest minor update, I'm considering leave iOS 8. I also have an iPad mini 2 that suffered noticeable slow down when it went from its original iOS 7 to iOS 8. I do not want to repeat the same experience with my iPad Air 2, so the question is: from the point of view of performance, should I upgrade it to iOS 9.3.3 or will it be slowed down? Thanks! PS: From the features and security perspectives, it is clear that I should (must?) upgrade. That's not my point. I'm not asking that.