She hasn't been any more accurate from closer in. Hopefully it is nerves. It takes some players longer to settle in. But watching her form I think it is probably endemic to her game.
Then we should see it show up at some point. But you can get those stats in high school just being a better athlete than everyone else. We have seen enough examples of it over the years. Very, very common in the women's game.
Anyway, let's see if she settles in. But being the last freshman off the bench would indicate they aren't seeing anything different in practice.