Major frame loss only when playing

Dropping to about 10 fps but only when I’m in game playing. Menu is 300, hero select is 140, death cam is 140 but whenever I play it just instantly drops. It’s been going on for the past couple of weeks and I just wanna play again. Thanks for any help you can give.

Maybe the following?

It worked!
Thank you so much

No problem. Glad it worked. I used to have the same problem out of the blue.