Shrugs, well every cat is different. Jack was a skittish stray so it took him much longer to be okay with the house, the people and all that.
But yeah, at the moment, don't try to change too many things. Keep the same environment etc for a while for her to develop a routine, become familiar to it and be calm. Then in no time, she might turn out to be a racer chick like my Miu. She sprints at top speed around the house which makes for much fun for Rocky the dog. har har!
So have fun and learn. This place is full of awesome people. I've learned a lot here myself and they've helped me many times. Miu and Jack are my first cats so I didn't have cat experience before.