tyon2006
commented
3 years ago There was an issue with applying speed to mobs in 0.1.8.5. We've since fixed the configuration, but any mobs that were created under the old logic will continue to behave this way until their death.
In my experience handling hogs, which are a (hostile) mob, the hogs move insanely fast even when they do not have any additional effects on them. Fending them off is very difficult and will likely result in the death of a player attempting to defeat them. (This is before version 0.1.9.)