About two weeks ago I downloaded a third party app that sets brightness to a specific level for me. It worked great, but was not updated for iOS 6. I didn't think it was a big deal. After launching the app and using it. I double clicked my home button to access other apps. I notice the tray takes long to open. it is not instant. So I set up as new.. Everything was dandy again. As of today I'm noticing the same thing happening except I did not download or install apps not modified for iOS 6.. So I have an issue and it is annoying. Why is this happening?