Delay while locking screen.

[AC Question]

I already updated to android M but i got 135mb update after that update my fone takes full second after i press lock button.Previously when i used to press lock button then it turns of within blink of an eye i dont like this delay help please.Nova launcher's lock gesture also turns screen off like my fone used to be but while using lock button it gives 1 sec delay and lock button is perfectly fine. (galaxy s6 g920I)

 

[Tim1954]

After updates it's a good idea to wipe cache partition to freshen up the device and clean out residual bits from previous version..
Turn it off. Press and hold volume up, home and power buttons - - once it lights up, release power button but continue to press the other two. The device will go into another screen saying the device is updating (release buttons here) .. Then the little droid will fall over and play dead. Wait a bit and another menu will drop down... Scroll down using volume keys, find wipe cache partition and press power button. It will do it's thing and you can scroll up to reboot device and press power button to make it happen.
Be warned, don't just press buttons blindly, you can wipe your phone from this menu....!