Sprinting while hitting entities deals less vertical knockback, even though it should deal more

As you can see with the clips, sprinting does deal more horizontal knockback as it should. That’s all well and good, right? Well, the problem is it, for some reason, does less vertical knockback than hitting an entity without sprinting. As a result of vertical knockback not being properly applied while sprinting, it feels like you’re dealing less knockback while sprinting, when you’re supposed to be dealing more.