Good morning: I undated my Apple ipad mini and regular size ipad over the weekend to IOS 8.0.2 and I have been using the mini since that time, and my ipad mini is extremely slow and gets hung up and also seems to freeze on me. I never had any problems with it before this recent upgrade since it was purchased in May 2013. Can someone please help, with easy to follow instructions, as I am not tech-minded? Anyway to fix this, or is it possible to revert back to 7. Thanks very much.