Iphone 13 issues in PUBG mobile

Anyone facing problem on iphone 13 in pubg???

Recently brought iphone 13 128 and I'm facing touch issues at the right side of screen on PUBG mobile and I'm also facing hard touch issues or u can say laggy touch i mean touch is so hard , it's very hard to play doesn't feel like 60fps after playing 2,3 matches touch becames so smooth and Feels like 60 fps and pubg is playable after 2,3 matches