Human NPCs have been tweaked accordingly so now you’ll pretty much be the same speed as them. Sneaking will be slower, as well as strafing, and aiming down the sight will of course significantly slow you down while on the move. Your mobility will also be affected by the type of weapon you’re holding.
Going into more details, players will move slower.
Immersive Movement makes movement feel more natural and suspenseful through interiors, while combat will be much more tactical due to the realistic pace that is set. This mod is for all those seeking realistic movement in their games. And it’s a must-have mod for everyone playing Bethesda’s RPG. As its title suggests, this mod changes the movements of the player, NPCs, and all creatures in such a way that would actually make sense from a biological and physical perspective. Modder ‘Zana Daniel’ has released an incredible mod for Fallout 4, called Immersive Movement.