Ok, maybe you didn't understand what I was saying so I'll reiterate.
More NPC's on screen oh of which the only time you'd notice in vanilla Skyrim is during the Civ war and "modded" are all the epic Battle vids on Youtube with next to no lag is because of the Optimized Coding -Bethesda- did for Skyrim. it has nothing to do with merging TWO armor pieces. mk? is it clearer now? if you actually examined rather than hanging on a statement NOT repeated since before Skyrims release Q1 2011, then maybe. just maybe
More NPC's on screen oh of which the only time you'd notice in vanilla Skyrim is during the Civ war and "modded" are all the epic Battle vids on Youtube with next to no lag is because of the Optimized Coding -Bethesda- did for Skyrim. it has nothing to do with merging TWO armor pieces. mk? is it clearer now? if you actually examined rather than hanging on a statement NOT repeated since before Skyrims release Q1 2011, then maybe. just maybe
In the civil war it was four outfits except yourself and follower, the soldiers and officers on both sides.
Unused equipment slots don't use resources, both you and npc has around 8 extra equipment slots who are used by moders for stuff like bandoleers, capes and earrings.
Except for the civil war, Riften marketplace is probably the busiest place in Skyrim but it has fewer people than before the battle for Bruma, both the soldiers in diffident uniforms and the civilians inside the city.
If outfits is an so large restriction why did they not made the civil war uniforms fallout style and non lootable? two less items, far more soldiers.
And because non used equipment slot don't use resources they could kept pants.
Main explanation is that the designers was lazy. But yes we got four types of fur armor, note they are based on the same model, add and remove some features.