Greetings

i bought the game before the relase date. All was running good untill today, exactly i run the game it's first round and guess what? i have lags and i dont know why.. sometimes lags come even in champion choosing. Sometimes i can play first round with out lags and than lags come and crash the game after 1 or 2 minutes. Pleas help me, i dont know what i can do. I tried to refresh all documents in uplay platform game settings. But it is still same.

Best regards