I got the 7, had the 6 plus and 6s plus for 2 years and decided I like one handed operation better than the bigger screen. So backed up my 6s plus on the way to the apple store Friday night to get my 7 through the upgrade program through Apple. Actually got 2, black for me and gold for the wife both 256gb. So her's works great. Mine has a huge lag in every operation. Open an app it hesitates and hiccups. Close an app and same thing. It's very annoying. Anyone know how I might could fix this?? The apps open and close but they stutter so to say. No smooth animation. Any help would be appreciated!