Anyone have an explanation/fix for this phenomenon? I've noticed after any major update my phone will be blazing fast right after and it gives me that "oh I don't need to upgrade" feeling. After a few weeks though it becomes unresponsive to the home button, and sluggish all around. There has to be some cache or something clogging up somewhere, but I have no clue what and where or even if I can clear it. If anyone has any suggestions please let me know.