Looks like you can skip if it's 2 bars or lower. That's not enough though. Even if it's wifi on 4 bars it lags.
They need to let us pick opponents just like in kasual games. And if cherry picking opponents with bad records is why they don't do this, why not just show us connection first without seeing opponent's kombat kard, record, name etc and show it after you accepted the match. So the first screen you see when it finds you someone is only type of connection and how good it is. And that's when you decide to accept it or not and if you do, it locks you in and shows you everything else.
This kombat league is gonna be a pain if they don't do this. I'll never get the rewards I want because it's not enjoyable to play. It's more like a chore...