So before new client i had constant 80-120 fps, now i have 40-60fps at most, same details, i play on lower details etc.
I found the cause - its the new client, if you close it when you are in game everything is fine and normal, new client eats more resources at idle than 20 chrome tabs or i dont know, same thing helped for my friend.
Now the problem is - Its really annoying to re-log every game, you dont see post game stats, chat etc. Which gets frustrating.
Maybe anyone know any get around, so you could close that launcher somehow and still see post game screen afterwards.
P.s its just my humble opinion, but new launcher is laggy, resource heavy and in no way comfortable to navigate and look around.