Share your experience!
after the update the games n video players used to pause on theirself ....... and camera loses its focus n images got blurry ..............
but after uninstalling McAfee the problem wid games got sloved but i m still having issues wid camera .... i tried reinstallig the software but nothing worked
like you said on games,I also experiencing same problem but I don't have McAfee to uninstall, 
In that case I think this needs to be looked at by an repair center. Contact your local support team for more info.
http://www.sonymobile.com/global-en/support/contact-us/contact-info/