Hi @amandato,
Sure. I was checking again and in fact, is already doing it without the need of being implemented on the plugin. So please feel free to ignore this comment.
Basically, the idea was to replace https://example.com/files.mp3 to https://cdn.example.com/files.mp3, or the subdomain a user selects. However was checking again, and using breezer (a plugin from Cloudways, with CDN set up) is already doing this ??