IMO, I wouldn't worry about it. Maybe you can bump up her food size. Based on her length, she could probly easily take a rat. My BP is exactly 2 ft long and I'm about to switch her to small rats.

It was feeding day, she smelled her food and she wanted it. Yesterday I tried to get mine to go back into her hide cuz she smelled the mouse, and she wasn't budging. To me, that's saying "I'm hungry, I'm not moving just gimme the damn mouse already!"