The closest I can think of is Vimeo, but they've concentrated more on highly edited, niche, even arthouse style video. I don't know much about their technical equivalence with respect to performance because I don't find any videos on there I'd like to watch.

Twitch has been attempting to compete in the video game space by adding uploads and comment systems on videos, but Twitch has its share of problems such as a haphazard dashboard and a terribly designed mobile app.

Vid.me was around for a while but recently shut down.

It's not a very competitive space imo.