Problem Description

Mobs that might be hostile against the player can receive the speed boost, making it harder to escape from them (though not harder than it would be without the data pack).
This includes

• llama's
• the mobs from Alex's Mobs (Endergrade excluded)

Priority

Low: The player is very unlikely to encounter hostile versions of these mobs in environments with path-like blocks unless they have deliberately been placed there or their typical spawn blocks added to the counts_as_path tag.

Also technically: skeleton horse when encountered as part of a skeleton trap

Also, and of the vanilla ones the most difficult: strider with a zombified piglin