I’ve always had a problem with the npc’s because it doesn’t make much sense. I think cell shouldn’t just sit there while you’re only doing the saiyan saga. Right now, it just feels like a weird timeline where everything is happening at the same time.
So my way of fixing this would be spawning in the npcs after you finish certain arcs(Babidi appearing after you beat cell etc.) This would add more progression into the mod because you would unlock new skills while completing the story, and it would make a lot more sense imo. Spawning in the structures after you beat certain arcs would be better ofc, but i feel like it would be hard to do.