Ive fixed my issue and its a stupid fix.
I literally went to codm support site and they recommended to reinstall, I highly doubled that it'd work but it actually fixed micro stutters! I dont know about other games but just experiment. Might be an issue if a game is regularly getting updated and some things get cached n cause issues..idk. Im happy that this, couple of months old, problem of mine is gone.
Before coming to conclusion :
Oh I've tried codm n samurai jack. Both stuttered like hell. Now I wanted to test it further and tried some other apple arcade game and honkai star rail, both worked flawlessly.