Just in case if anyone wondering : if Akane is a genius at acting to the point that even Kana (the child prodigy) felt jealousy against her, then why thus far we only see Akane being flustered and at lost what to do?
Things like these is actually happened often in real life you see. When someone told about what s/he should do : they're investing all of their concentration, time, and energy to do so, in the best possible manner they could think of. And the result ; are mostly splendid.
But these kind of people usually focusing on their right side of the brain (about being methodical and all), when they just being put on the field and suddenly told do : just create something nice. They're mostly at lost about what to do (exactly like how Akane behave from few previous chapter)
Case like this are mostly happened to teenager who's receiving professional education and suddenly being put on the field. Since their education are mostly about methodical approach, but nothing teach them about how to be self sustainable and making decisions on split seconds.