Fast, i would think of is to reconvert initial prorez to something that is mov but has different compression.
Like uncompressed tif etc as a compressor, if you think replacing initial file is a problem there.
Make backup from your original file 🙂 so you will not overwrite it.
I have not tested it like this but generally just replace original mov with other mov in media pool or
on your drive.
Corrections etc should be the same as you only change source codec.
In the other hand if you see that the result only gets different then just render out in less “shifting”
format.
Did you get better results with uncompressed source or output. Did you make small test ?
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Margus
https://iconstudios.eu