What I mean is depending on the weapon you pick, the movement speed will be different. So lets take Voulgier, With a movement speed of 81, what weapon is that accurate for? Surely the movement speed is lower if you pick the sword and shield perk, but the stat itself doesnt change.All weapons + items (shields, arrows) you carry reduce your movement speed. Weapons in holsters have a smaller impact though yes.
The stat isnt wrong. But yes if you carry a lot of weapons, you will be ever so slightly slower. Although the biggest factor for this are bows and shields. Most weapons weigh around the same.