It might take a few hours for the things to smoothen out. Like the device running TRIM on the SSD. Unless of course you got it few days ago and the things have still not smoothened up?I received the update and the strange thing is the phone takes a little bit of more time while running games. I had a pin lock so when i hit the numbers it takes a little longer to detect the strokes. Googled this problem and people are saying to factory reset the phone and I'm not willing to do that.