why does my alcatel idol 4 lag

[AC Question]

my acatel idol 4 lags it has ok gpu 405 adreno and cpu octa core and 3 gb ram but the screen its very good 1920x1080 does this cost the lag when gaming or the android 6 is not optimized good?

 

[B. Diddy]

Welcome to Android Central! Does it only lag when you're gaming? How about with other apps or activities? Does it lag in Safe Mode as well? How to turn on safe mode on Alcatel Idol 4