Buy-sell repeat for early stars.
Don't bother with trading after two towns, just hunt the big ships.
Don't buy extras for your ships, just buy new ones.
If you do buy upgrades, buy the last one on a line and get the previous for free. And last... just board the Endboss => instant win
Directions should have priority over rally point
Automaticly choose attack move and remove cancel and move (and give a "stop button" if you missclick instead)
More hot keys
Don't make units stop when their target is killed
Really, I could go on and on....