For the renamed folder I changed it to just 425, completely random on my end, had no clonflicts with other mods but if you have one it's an easy fix of just renaming it from 425 to something else. I also decided to remove some of the animations from katanas that I didn't like, removed all of the 1st person animations because I found they just looked off for me in most cases anyway, and this mod I feel has better options First Person Combat Animations Overhaul 2.0 -SIZE MATTERS at Skyrim Special Edition Nexus - Mods and Community (nexusmods.com). I removed some 3rd person running animation stuff because again I feel it looked odd. There are two versions, the main one, and a second one that should make it so npcs won't have the weapons, you should still be able to find them in chests, craft them, and buy them from blacksmiths.

My preferred versions are the slower ones, could depend on your setup though.

If any of you want some custom version of this, maybe removing more stuff, or altering it in any way, just ask, I'll probably do it.