This mod is intended to make the X Galaxy much more dangerous and lively. This adds many more ships, fleets and extended AI so that fleets and patrols can move around the galaxy. They can use highways, superhighways, jump and boost. They will attack their enemies and defend their territory.
This also provides extended end of game material. Try your hand at taking on the Xenon, you will need a massive fleet to do so. Protect your assets from enemy invaders (small patrols and fleets), etc.
I do not know how well this will run on your PC, if you struggle with vanilla
X Rebirth then this may not be for you but try it and see if you can handle it. It runs fine on my PC, but my PC is fairly powerful.