Watching Bae play the Peach game reminds me of one of the gamer traits I like about Shiori.
See, Bae's a pretty good gamer, but every time she plays a new game it's like she starts from 0, even if the game is relatively easy. This is exacerbated if the game contains many different playstyles within it. So even though she'll be pretty good at a game after several hours, it's always surprising where she'll struggle along the way to get there.
Shiori on the other hand, might be more picky about what kinds of games she plays, but her basic game knowledge usually carries over from game to game. Even in types of games she doesn't usually play, like a lot of the collab games, she has a pretty consistent clutch sense of timing and adaptability. So typically if the challenge presented is simpler than something else she's played before, then she doesn't have that many problems overcoming it.
Shiori's biggest problem though, is that she'll often have a habit of confiding with any nearby viewers or partners for suggestions even if she doesn't really need them, and usually that just distracts her.