Massive delay after I touch something. When I try to take a picture it sits with the shutter closed for about 3-5 sec. Working between open apps is a nightmare. I've tried a hard reset but didn't help. ???
Did you try restore? Also, if you double click home button after the hard reset, how many apps do you see? If you see all the various apps try to press and hold and close all of them, then reset the iPhone again.