Game Physics (immersion)

I would love to see more physics into action, for various purposes like, immersion and for game mechanics.
The character can and should have inertia to start, stop moving and changing direction.
I thinks there is a need for inverse kinematics for combat for us to perceive weight, yes there are some here and there, but to me they don’t feel realistic, - no, I don’t want a simulator, it is just for immersion purpose and this is not a small thing.
During the fall phase of the jump, the gravity feels too high.