Well, firstly check if their players have very high whites and low greys as usual. In extreme cases, 117% could be some 200%+ beasts.
And then my own experience is that when playing these NPC matches, it is easier to win with a defensive a setup, ie. more defenders than opponent’s attackers, outnumbering midfielders, etc, and so have a way higher winning chance than relying on RNG on outscoring. Especially this King of Kings event would involve counting goal difference on final ranking, so it makes perfect sense to set up an ultra-space-negating formation like 4-1-3-2AM to minimise opponent’s goals (even better to go to PK when we have a super GK

)
[formation with 5 defenders is easier to be defeated as midfield would be outnumbered very handily]
Just on day 1 of final phase my level-2 107% team has defeated at least 8 times from 125%+ challengers - obviously a level-2 team won’t have low greys yet but still can perform when tasked.
