You know, I love Kris to pieces, and I'm absolutely all for the super cool, ultra-competitive, often sassy/sarcastic, absolute girlboss depictions of her. She truly deserves all of it!!!! Her character design alone definitely gives off those vibes, and I'm sure there's in-game evidence to support that kind of personality (I haven't played Crystal yet so I can't actually confirm that part myself). But I'm also begging people please please please let her be just a tiny bit cringe because she deserves that too <3 I think that if you wanted to (key word is want---I'm genuinely not trying to police or judge anyone here, as there's nothing wrong with simple characterization---I'm just pointing out a common thing I've noticed), there's so many interesting ways to explore her personality without making her just another Cool Girl(TM).
(I've seen a similar thing with Lyra being simplified to sweet-but-a-little-ditzy and/or cheerful-but-secretly-Sad(TM) and/or having an "I can fix him" thing with Silver, but that's probably a conversation for another time >_> )