4 mice a week is alot, that's what my 2000-2500g girls get every 7-10 days. She's probably just catching up. Wait a few weeks, pre-scent for longer(30-45 minutes) then feed a live mouse in the dark.

You don't have to sit there and hover around her. Just open the tub, drop the mouse in, close the tub and walk away. Mice really don't have the ability to do alot of harm. I feed over 50 every time and it might take me an hour.