Insane input lag in Rivals mode

I had a problem about the slow motion gameplay before but after newer solutions (60hz 60fps) the solution temporarily solved my problem. But now i have insane input lag like 4-5 seconds and it does not have any published fixes about it. I can not believe i have paid 90 dollars for a game that i cant even play properly from the first day of the early access until now. These issues ruined my in-game records and also in-game coin multiplier.