Thanks a lot! Your advices helped me a lot, but 9000+ planet score is smth unbelievable for me. For example, that's my best run
I think the problem could be in my extensive use of starbirth, that consume a lot of time. And, I also surprised, that you have found infraspace usable (isn't it consume 2 much time?) and don't use void syntethizers (why?).
Void Synthesizers have a couple of key flaws. They can't produce goods, which are critical for elevating colonies from [content] to [prosperous]. They're also extremely endgame, and cannot be used to push planets from [prosperous] to [rich]. 
On the other hand, Starbirth can be used to push planets from [prosperous] to [rich].
Similarly, infraspace can also be used to move the necessary extra resources to propel planets from [prosperous] to [rich].
