Thanks so much for your support. The lower resolution video does play better but still not perfectly. When the frame count in the top right corner turns red does that mean it is struggling and skipping frames?
I did notice that when I turn off some layers it does play normally like I want it to. It might be overloaded with info, at least for my tablet to handle. Do you think I would benefit from making a new file for each scene? I might try that and then stitch the files together in iMovie in post.