MWSE F.A.S.T.
version 2.0
Fatigued Actor Speed Truncating
A MWSE TES3:Morrowind mod
by Stripes
Requires MWSE
DOES NOT WORK WITH OpenMW
What it does:
increases and decreases all actor speeds by fatigue ratio
What that means:
All NPC's, Creatures, and the Player will move faster at full fatigue and slower as their fatigue drains.
Won't that break the game?
Probably, I mean it's far from not broken already 
But not to worry, I put in a debuff cap at -50% so no one's speed is reduced to 0
Inspired by my MWscript mod F.A.S.T. (Fatigued Athletic Speed Tiers)
changelog:
version 2
refactored code to Juidius Xentao77's specifications.
It is now how the mod should have been imho
actors above 75% fatigue will move faster up to 125%
actors below 50% fatigue will move slower down to 50% speed at 0 fatigue
actors between 50% and 75% fatigue move at 100% speed (normal game speed)
drop into Data Files
or use mod manager
use how you like just gimme credit if