note about small hls segments & latency with(out) videojs

README.md

@@ -31,14 +31,14 @@ This works on Linux, and should work on macOS and Windows with some tweaking. Lo
 * Shows stream uptime
 * List of users watching / not watching
 * Optionally uses videojs (append `?videojs=1` to the URL to enable it)
-* With videojs disabled, you can scrub backwards and forwards on the video timeline. If you scrub to the end (the most recent segment), you can achieve really quite low latency, as low as 10 seconds.
+* With videojs disabled, you can scrub backwards and forwards on the video timeline. If you scrub to the end (the most recent segment), you can achieve really quite low latency, as low as 3 seconds.
 * Works without JavaScript
 * Works without cookies
 
 ## Issues
 * CSS is spaghetti (e.g. the PureCSS framework is used sometimes when it might not need be)
 * AFAIK the FFmpeg command in `stream.sh` only works on Linux, change it for other OSs
-* Slow: stream delay of at least 10 seconds (>30 seconds with videojs enabled). Hopefully this will decrease when congestion control gets into Tor: https://youtu.be/watch?v=zQDbfHSjbnI. ([This article](https://www.martin-riedl.de/2020/04/17/using-ffmpeg-as-a-hls-streaming-server-part-8-reducing-delay/) explains what causes HLS to have latency.)
+* Slow (if videojs is enabled). Using videojs is slower because you have to make many separate GET requests, without it you only need to make one. If you lower the HLS segment size to something like 2 seconds, you get very low latency without videojs (smallest i've got is 3 seconds) but with videojs the stream becomes unwatchable because of the overhead of each GET request you have to make. The stream delay is >30 seconds with videojs and >3 seconds without it. Hopefully this will decrease when congestion control gets into Tor: https://youtu.be/watch?v=zQDbfHSjbnI. ([This article](https://www.martin-riedl.de/2020/04/17/using-ffmpeg-as-a-hls-streaming-server-part-8-reducing-delay/) explains what causes HLS to have latency.)
 
 
 * Doesn't use low-latency HLS