Lag & Server Error on RUSH

Its been 3 days now since the connection to servers seems unstable on PS5. I've checked everything I could starting from hardware to software and reset and restore cache and everything I could think of just to try and have a stable connection. In the end, I get a server error right after everyone's ready for RUSH match & I get kicked out of the matchmaking. AND the gameplay itself is very laggy and seems like FPS are low. Are we aware of this situation? Does anyone else face the same issue? I'm on eastern europe servers btw