While viewers themselves contribute a little additional bandwidth while watching the video in their browsers (mostly during surges), mirroring servers have a much greater uplink and will help your instance with sustained higher concurrent streaming.
With PeerTube, no more opaque algorithms or obscure moderation policies! PeerTube platforms you visit are built, managed and moderated by their owners.
You can also go on the <a href="https://framacolibri.org/c/peertube" target="_blank" rel="noopener noreferrer">forum</a> to discuss with the community.