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30s+ delay peertube livestreaming seems a bit steep, and seems to be a limitation of p2p. streamers on twitch can talk to eachother through their streams because of sub second delay. 10s delay would be tolerable if you are relying on chat interations
it may be possible in the future to switch to non-p2p for your peertube livestream for low latency https://github.com/Chocobozzz/PeerTube/issues/3494