Thank you for the reply Todd!
2 things: 1, I have a lot of individual text files that are animating in 3D space and if I precompose them, they will lose their attributes and I would have to reworks their intricate animations from scratch. 2. I also want the movement of layers within comps to playback at 24p, but only their scribble, brushstrokes texture to playback at 12fps.
Adad