Because I often change values for testing while developing, and because the last update was pretty big I forgot to change a value back to normal, and as a result 0.20.0's speed check was a bit broken. This is fixed now, I tested this new version on a real server with ~25 players on, and it seems to work really well now. Also I improved the ping spoof check a bit more.
Changelog v0.20.1: - fixed an important setting in the speed check I forgot to change back to normal when debugging and tweaked the settings in general
- improved the values for the ping spoof check to reduce false positives