My Note 4' power button won't response to open the screen fast

[AC Question]

When I try to open the screen on my Galaxy note 4 by pressing the power button,it takes around 3-5 seconds to respond.
So is there any way to fix that?
You should know that I have Marshmallow 6.0.1 installed.

 

[Javier P]

Mod note. Thread moved to the Note 4 forum for more visibility.

 

[nahoku]

MM is relatively slow from what I saw before I downgraded my spare Note 4 to LL... but it's not that slow. Have you tried starting your phone in Safe mode? Might be an app causing the issue, or it might be syncing, or even a corrupt file on the SD card. You might try removing the SD to see if it helps.

 

[IAmSixNine]

Is your phone running warm by any chance? poor battery life?