newest 5.1.1...!

hey guys, one week ago i installed OTA 5.1.1' but it's not the new with the new icons, and i am having some issues with it, the phone lags in the settings app for the first couple of seconds, when someone call me and i slide the green circle to the right the in-call screen appears but the phone freeze for two seconds and then return to the screen you see when someone calling you again....sometimes i have to slide it 3 times to answer the call, i didn't have these issues in 5.1.1, now the question is for those who have the newest 5.1.1, do you have these issues??

thanks