I've created my own "credit roll" because I couldn't find any generators that were to my liking for a project.

I'm keyframing the pan/crop "scroll", and while the overall direction looks fine I get one problem:

The scroll speed starts slowly and then accelerates just enough to notice.

I've started the scroll out of frame and under a fade so as to avoid showing the start position (the same goes for the end position) but the thing just seems to wait until it's visible to start accelerating?

Any thoughts?