see:
https://openbenchmarking.org/test/pts/encode-opusModern CPUs seem to be able encode opus at around 266x speed. In other words they can encode 266 seconds of audio in 1 second. The tests results also don't scale with core count, so the program itself is probably single threaded and therefore you could encode even faster if you have concurrent streams. It's highly unlikely that even with VCUs, a server can encode video streams at several thousand times faster than playback speed.
