Settings keep reset and laggy menu

I have a problem that is pretty much disabling me from play. This has been going on for around 4 days for context. When I load up cod it acts as if its my first time ever playing then im greated with a laggy mess of a menu after waiting a while for the game to let me continue. Eventually I load into a game to find all of my settings reset. This wouldn’t be much of a problem, but due to the lag that delays me from changing them and the fact every team I reset they revert back to default it makes it very hard to play. I saw someone on this subreddit with a similar problem but they didn’t reply. Any tips would be great have already deleted and reinstalled.