Collision Fix which fixes client-side collisions checks to prevent you from pushing by other entities. Mobs simply won't be able to push you if they get too close. You can still be pushed with normal attacks, etc.
Starting with newer versions of the mod, you can choose which entities are able to push you. You can also enable this only on specific servers.
Original by: [ CorgiTaco ] Entity Collision FPS Fix - Modrinth
