I did end up making my own small mod of VRO to adjust some things to my liking. In particular, one change I noticed you are already considering: I have removed the buff to NPC defense platform health and also nerfed Xenon station health by about 200%! (Apparently this was vanilla, but a typical xenon solar power plant in my game had over 20 Mil hp, which coupled with the very deadly weapons resulted in failed attempts at taking it down with a fleet of 3 battleships and 3 destroyers, both IS and OOS).
I have also buffed ship hull values across the board, and the internal generators, while increasing weapon damage to compensate. Overall this resulted in ships being stronger relative to stations in general, especially coupled with the station hull value nerfs.
You might think this was overkill, but before these changes I played the game for a total of 4+ days and I think I only noticed 1 sector changing owner (to the xenon) despite using FOCW (with medium+ settings) and Faction enhancer.
Stations are still dangerous after the changes but are no longer immortal bastions that can hold off armadas by themselves.
Also, I've been playing a split game, with the dynamic relations mod, and I'm RPing helping the Zyarth Patriarchy conquer the galaxy. So I'm mostly/only using Split tech. The only other tech I could get my hands on so far is some Teladi stuff.
One thing I noticed is the Split L Turret Mass driver is very poor relative to other similar guns.
It's meant to be a special split anti capital weapon, but compared to the Teladi Gauss is worse in every way (less damage, less range, same everything else, except for the small amount of shield pierce which is not that great against capitals).
I think you should buff it

In my game, I buffed it by making it fire in 3 round bursts to keep with the Split dakka approach, and having an overall slightly better dps (as most other split guns) than other similar capital weapons (esp considering it's shorter range).
Anyway, just wanted to say thanks for the work, this is a great mod, and has had me enjoy X4 greatly, please keep working on it!