Here's your solution, unfortunately Asus is not to blame, the fault lies with the game developers who limit the amount of fps you can play, for example CoDM runs at 120fps but in BR only at 90fps,, Now with the root issues on Android 7-6 some have asked to remove that limit with third-party apps or phone modifications, even the ROG 8 is not able to take the game to a stable 120fps, and And increasing the Hz on the screen will not increase your FPS because that is already determined by the game, if it goes to 90 and you set it to 165hz it will not go to that frequency since as I say it is the screen frequency, they are not fps.
