Players barely take knockback from iron golem attacks

Players barely take knockback from iron golem attacks unlike any other mobs/entities.

How to Reproduce

1. Create a World.
2. Find a village or spawn an iron golem via command.
3. Attack it.

Expected Results
Player should take the same vertical knockback like any other mobs/entities.

Observed Results
Player don't take vertical knockback like any other mobs/entities instead, they get pushed back by a little bit.