It may just take her awhile to get used to all the sounds but then again she may remain a jumpy and skittish kitty forever. They are all so different that it would be impossible to tell. Of my twelve it's certain that if someone knocks on the door 9 of them will take up the kitchen tiles on their way to hide!
At least she likes to follow you around and it sounds like she is a real snuggle baby. Thats good news!