Call of Duty: Modern Warfare - 2019's soft reboot of CoD

I can’t seem to make it through a complete round without it either just dying with no indication of what is wrong, or a couple times saying lost connection status: chronometer. I tried rolling back to an older nvidia driver, reinstalled the shaders, and reinstalled the game itself. It is great fun while it works, but not being able to play more than a few minutes at a time sucks. So I give up after a while and go play some Battlefield, then come back and try yet again. I guess the next attempt will be to move it to my main drive if I can free up 200gb on there. I’ve mainly been trying Ground War, but I also had it happen in a couple of tdm bot games. When it first came out I played a bit of the campaign, and didn’t have any issues.