Stuck at 30 Fps.. Sometimes...

So I know there's a few people here having the stuck at 30 fps issue but for whatever reason mine fixed itself after I restarted my client. Other issues I noticed during that session was I couldn't use the practice or vs bot game modes but I could use regular, ranked and customs on the various maps.

I restarted my client and all seemed fine after. My main issue is I primarily play ranked and to have the odd game cap me at 30 fps is very annoying. Restarting client in the middle of a ranked match is not a viable fix as I'm sure y'all understand.

This issue just started happening after last update.