What people don't seem to be getting is the fact these are meant to be among the absolute best of the competing universes. The Saiyan who recommended Caulifla to Cabba said clear as day that her potential is well beyond his own.
We may not like how she achieved Super Saiyan and Super Saiyan 2, but that's just evidence of how talented she is. People are wondering why she wasn't immediately turning Super Saiyan against the pride troopers, but that's likely because she isn't as used to the super Saiyan form just yet, and no matter how quickly she achieved the transformation, she must have clearly been somewhat exhausted or at the very least isn't nearly as adapt at using the power as Goku and Vegeta are.