I have a Galaxy S3 International Version, without any modification whatsoever-- no rooting, no nothing. It is as good as a stock phone with a few Play Store apps.
However, of late, I have begun experiencing problems
I do not have background processes (of my own) running and even then all I have left free in the RAM is usually only 300MB of the 800MB that is there. Task killers cannot free more than that.
I experience lag when opening settings. What I mean is this: Say I click on the
Battery option under Settings. There is a visible lag between the time I press the option and when the battery information is actually displayed on the screen.
Android Version: 4.1.2
Build Number: JZO54K.I9300XXEMF6