The only issue I have with my Pre+ is the keyboard problems with the no-type, double-type ish, but I was wondering if I used the 1.4 doctor would it help make the phone overall smoother? Sometimes when I go into the launcher and switch between pages there's always some form of lag. I'm not ignorant I know a phone's not perfect, but I was just wondering if it would do anything for my phone. Thx!