You're not wrong but the local whisper(?) engine is really slow running on my NAS. I have an N100 box that runs Plex but I haven't found much to suggest it would be any quicker running from there due to a lack of OpenVino support. Standard Whisper can be compiled to use it but it's potentially no quicker than faster-whisper without it.
And that's where I'm up to really. Every time I think about getting some different versions installed and doing benchmarks my brain goes back to Christmas slob mode and fogs over.
Just to add to the info so far: while you're spending the effort doing a migration it's worth going the extra few steps and moving to their Docker image. It'll make any future server moves a doddle, not to mention updates etc.