I almost never use unsharp mask because it adds a ridiculous amount of time to my exports. The same computer sharpening with multiple different sharpening nodes in Davinci Resolve barely ads ANY time to the export let alone exponentially increasing the time to export 2-4 degrees. I'm at about 10 minutes for a 30 second clip with Unsharp Mask and about 30 seconds for the same clip without Unsharp Mask. Crazy.
Damn - I thought for sure UM was GPU accelerated. That seems like an oversight to not make a very taxing process gpu accelerated. Anyways - just tested it. Against my better judgement I sharpened before my other adjustment layers and export went from 4:54 for my clip to 1:43. Thanks!!!