apologies for later response. Had a busy period at work and only now I had time to respond.
To answer your suggestion. I could export the sequence, but we're talking about 60'000 frames per video. So I would have to make 1'200 samples and run each of them via Dain. I tried to run Dain for only 2 frames before but interpolation returned nothing. How would that work? Technically, it could work but I'm worried that it might take me 2 weeks of manual work to manually reconstruct the whole video this way.