This is about the mesh but still the problem of combining the sequences into one file isn’t it? I opened all the files using Merge and then recorded the animation as shown in the screen recording below, it may not be completely practical but I got 10 frames in less than a minute, you could calculate the time based on how many frames you have and see if it’s worth it, however there must be another way, I don’t know if it can be done with a specific script, I’ll let you know if I come up with anything.