Gravity generator too weak when freefalling?

When jumping with the gravity generator at 1g the downward force feels accurate(although when trying to scale up the stairs it sometimes feels like 10g) but when freefalling(through an elevator shaft for example) there's no acceleration and the fall speed is reduced greatly(~0.6m/s fall speed at 1g and ~0.3 m/s at 0.5g assuming 1 block = 1 meter). I understand the lack of acceleration but I don't understand the big speed difference between normal jump and freefall. Am I missing something? Is that intentional or just a unwanted byproduct of game mechanics?

Ok let me check, I should have an acceleration not constant speed, and the same physics should be applied to jump (Jump is just an impulse of speed) - I might have broke that at one point, as I never use gravity I did not noticed it