I would guess that it didn't take long running on Meta's servers, but if you were doing this at home with a 3090 it would take at least 6 minutes per 15 second

I would guess that it didn't take long running on Meta's servers, but if you were doing this at home with a 3090 it would take at least 6 minutes per 15 second video, assuming your settings take 15 seconds to render a single frame and there are 24 frames per second in the video.