https://hax.saviola.de/kick_limit.php
It converts between kick rate limit settings and some (hopefully) more easy to understand values:
- maximum kicks per second (how fast is fast mode)
- duration of spam at maximum kicks per second (how long is fast mode)
- kicks per second after that (how slow is slow mode)
- time until spam is fully recharged (how long is slow mode)
It's not perfect because doesn't round values, but you can play around with it and hopefully get a better understanding of the kick limit values.