[neomax]

Well, the developer of GalCiv declares that their strong AI is due to the multi-threaded mechanism. I remember there is an option to set a total ship number uplimit in order to reduce end-game AI calculation time. So calculation is very time-consuming for the computer. But using multi-threaded mechanism, the GalCiv probably won't have such kind of issue, because the computer thinks while the player is still making his arrangement!