I update my xperia zl to kitkat version (4.4.2), and it gets some issues like:
1) Camera app takes longer to start than when I had Jelly bean.
2)The settings Menu lags a hell lot..its really annoying because I expected an increase in system performance when I updated to 4.4.2.
3) Scrolling response isnt fluid and feels worse than before
There is a way to fix this issues? This problems happens to another models of xperia zl?