I was playing a game against AI and had gotten all of my capital ships up to level 9.
Towards the latter part of a game I lost a level 9 Kol.
I replaced it with two new Kols which I purchased a couple upgrades for.
By the time the two new ships joined the rest (not a formal fleet), the rest of the capital ships were level 10.
Within a very short time, the two new Kols were level 10.
How did that happen?
It would be nice to know how to accelerate upgrades.