She sounds fine to me, she's probably just not as feisty. It's like kids(I'm speaking like I'm not one) some are super active and playful and some would rather read a book.
love It! My coop is not insulated so it gets hot in the summer and cold in the winter. not a good design but its HUGE! 250+ sq. it came with the property. it even has rafters that the chickens roost in.
I have 24 Black Star hybrids that are doing fine. I lost 2 to predators but none to sickness. I had a couple get sick but they recovered in a couple weeks. :)