Consider loading all elements onto their own canvas prior to doing a slide animation

[Go1den]

I think the reason we see variable sliding speed has to do with the number of elements and the total width/height of those elements when sliding. This is only a hunch, but if we placed all of those elements into a canvas first, and then slid just the canvas, it might be more efficient? This might not work though because I'm not sure if the new canvas would overwrite the canvas below it. It also probably means the "zip" animations would no longer be usable in conjunction with the slides, because the zips rely on being able to move each individual letter.

[t7ewithp]

I'm starting to suspect that the high cpu problems that Claude and I have seen are related to sliding and not to the 4mb .stm files so this is likely to be all that's needed for our use case.