Unfortunately they all have their own different feeding habits, so it's difficult to tell if she'll grow out of it for you.
If you really want to see her eat, you could try feeding her in a small tank, putting it somewhere quiet and covering it with a towel to make it darker. You could try leaving her alone for 10 minutes and then gently lifting the towel. However, you do risk her potentially spitting the mouse out if she's part way through swallowing.
Sounds like you've had her long enough to have settled in OK. If she's really shy about eating, then she may never do the business with you watching. Best to leave her in peace, rather than put her off the idea of food.