Why has Calpurnia tyranny unfairness and meddling faded to gentle grumblings of general disapproval according to scout in To Kill A Mockingbird?

I don't think that Calpurnia changed, I think that Scout did instead.

Scout is very naive at the begging of the book, but she also spends a lot of time around Calpurnia, so they step on each others toes a lot.

Scout calms down a lot when she goes to school, and after her first day, Calpurnia makes Crackling bread for scout as a special treat - Calpurnia also says she misses Scout.