I been testing a ton of resolutions and dpi combos to get a proper aspect ratio with 0 black bars and 0 notch black bar , if others want to turn their Phone into a beast for gaming these are the resolution and dpi commands.... adb shell wm size 720x1500 .... adb shell wm density 290 .
For it to work enable USB Debbuging (Security Settings) as well in developer options., Some custom kernels doesn't work well with the lower resolution so if you see weird stuff happening use stock kernel.
(if you see the text becoming blurry then going back to normal every 2 seconds , go into Developer Options and find Smallest width .. use 397 there and the blurriness should stop).You are welcome

now go play anything you want on ultra settings without a stutter ! Your phone just transformed into Pocophone F2 performance wise