Why does it feel like i’m sliding around after i stop moving

I don’t know why because i’m low ping and i have a 3080ti but it seems like when im sprinting and stop my character slides 5 or so feet. and when im shooting it just isn’t registering. it’s so unplayable its crazy and i can’t refund it because im over 2 hours and cant even play the game if someone has a fix pls tell