So, coming back to fnv after about 10 years I'm looking for simple mods that can make this next playthrough fairly standardized.
Still surprised some of these haven't been addressed so this is my attempt to do so without mucking up the games files.

This mod comes in 2 parts.

Part 1. The jerky left right animations while the player is aiming with a ranged weapon.
I've tried several different ways to handle this and the current version is the best and most reliable.
Basically if you are in combat, it gets your potential combat targets and if they are equipped with a ranged weapon it will reduce their speedmult to the one in the config. Otherwise it should leave them alone.

Part 2. Theres a problem with the player and the npc speed not matching up.
I attempted to make it dynamic based on a few conditions:

If certain AIPackages are running (never edited any packages): 1, 2, 14, 14 (follow, escort, travel, accompany).

1st person holstered/unholstered and 3rd person holsterd/unholstered.
In the config you can change these numbers to tweak based on mods you have.

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I'm just getting into scripting so let me know if you have any issues.
Anyone more experienced is welcomed to provide feedback.

Have not used vortex but no problems with MO2.

Enable under [Settings] enables the combat portion.
The combat portion is to reduce the ranged npc's left right jerkiness randomness.

Enable under [frandsEnabled] enables the scaled running for friendly npc's.

Again being new, I'm still open to better ways capture this via script.
Trying to keep this dynamic ish.

Install
Download with you mod manager, I only tested with MO2
Make sure you have JIP, xNVSE, and ShowOffNvse

Incompatible
Initially thought J3 motorcycles might've been incompatible but I think there are issues with that mod.
You can always set the player in the config to 0 and test it (I had no issues with it enabled or disabled).

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Changelog:

v 1.1 - Added NPC's need to have LOS for combat speed reduction to be a factor
(while trying to record a video I got to see a reduced speed ranged npc trying to run around the corner, kinda like a scary movie scene)

Added "PlayerEnable=1" to the config. This is to allow players to turn off (0) if they don't want their speedmult messed with.
If you do turn this off, you will still need to figure out your own values for iFrandlyNPCSM0 1-4
(Best way is if you are in game and have access to the console, use GetAV speedmult to get the current speedmult and then use setpeedmult #)

Added a filter to affect NPC only running a certain package (Follow, Escort, Travel & Accompany).
These were the most common I spotted. Let me know if there is another I may have missed.