Lag every single weekend on specific modes on UT

We've been facing this since launch. Every weekend is the same, i play with 6 ~ 8ms but feels like im having 200ms+ due to input delay.

The only modes with this issue on weekends are: Rivals, Champions

I just played a match on Rivals and i had this problem, as soon as the match ended i went to Rivals and everything were smoothly and had instant control responses.

Then i went to play Pro Clubs with my club, i had a match 11vs10 (21 players at the same time) and again EVERYTHING went smoothly.

The problem is UT ON WEEKENDS