>>11893043she's been slacking on her singing
the time she sang Snow Halation in members it sounded like she had more trouble with it than when she was Miki
she definitely hasn't been training or practicing, and she should really get back on it because ifyou don't use it you lose it.
All she needs to do is practice at least 1 song a day and it'll slowly make her improve even if its just breathing control