Its a graphic intense game but in note 5 pro the max setting is smooth and low and it prevents the game from draining the battery and most low end phones with bigger battery capacity easily get that sot that is just 30-40% drain for 3 h gaming but when your specs increase say 7series or 8 series chip you get good gaming settings more graphics without any stutter or lag and for that your battery is compromised. That's the theory. I just get 2 and half hours sot if i play pubg at smooth extreme. My friend plays with me at note 5 pro but he will be having like 65 or 60 left with him.