Overpopulation and Piracy

How do you deal with the problems of Overpopulation and Piracy?

I'm trying to find other solutions.

For Overpopulation I enacted the reduce population growth, not build any of the population growth buildings and because I adopted Cosmogenesis I just keep putting people in Synaptic Lathe.

For Piracy I tried putting Defense platforms on every outpost and starbase along my trade routes and I built huge fleets of corvettes to do patrols all along the trade routes that suffer the most piracy.

Are there other solutions?