Yeah I have never used the time remapping.
But I don’t think any video player will be able to handle a variable frame rate as part of the same video. So to combine them, you will need them to run at the correct animation speed for the video output.
What does that mean?
Even though you want it to look like 16fps, you actually need it to be 24fps (if the is the final output frame rate you want)
I would actually try the NLA for this type of thing because it will sample the animation data rather than just changing the speed of the video playback. I think you want to have the animation running at 24fps but the speed is at “16fps” if you know what I mean. eek – now my brain hurts.
Time mapping might do the same thing – but I have no idea how it works.
Also check out this video by Looch.
https://www.youtube.com/watch?v=Nce7SVJD330
This might also be an option, to have finer control over things. (you can always render the image plane.
