What fps are the animations supposed to run in? Specifically Holly's animations.
Sounds like you could manually pair everything down to 20ms delays (with duplicate frames), and run it at 50 FPS (i.e. 20ms between video updates).
In traditional animation, this is called “animating on twos”, or “animating on threes”, etc. (just depending on how many frames pass before the image changes to the next one in the sequence).
This is a neat technique, because it allows for the low action sequences to be less animated, and the high action sequences have more frames (maybe even going so far as to animating on ones).