Games Are Lagging

Every Game Is Lagging On Iphone 12 Pro Max, Pubg, Call Of Duty And Even A Subway Surfers. There Is A Small Frame Drop On Every 2-3 Sec Apple And Game Developers Does Not Optimise Games For iPhone 12 Series And The Phone Also Heats Alot, Iphone XR And 11 Is Much Better In Gaming Performance, I Request Apple To Solve This Issue On Iphone 12 Series Asap.. My Main Purpose For Buying Iphone 12 Pro Max Is For Gaming Only..I Don’t Believe That A14 Bionic Has This Much Bad Performance..