The crappy AI seems to be messed up on Resupply problems when starting on low tech. Usually Going only a few "graph spaces" before returning to the Ai's homeworld.
I increased the Bussard collecter and ram scoop by twice the numeric value on the supply generation. Then 4x when that didn't work. Even with a perpetual endless generation of supplies. The AI still returned to the Homeworld.
I then preceded to increase all warp drives, quantum, transwarp, etc. By a factor of 10. Now the AI is actually going somewhere.
The rountine Ai usually uses a 3,000 value for supply on Basic impulse. (Returning around 1,500 for resupply)2 warp holes and back.
With a value of 500. The Ai was going about 2-4 Spaces then constantly returning to resupply.
I would <possibly> suggest a 5x value for the mod's warp supply values. So beginning AI could at least go two warp points distance.
Just my humble thoughts. Great game btw. I wish BOTF would have been as playable and enjoyable as your mod.
(Edit Forgot to add: Using latest vrs. 1.9.0.1)