This game wasn't that hard even on the hardest difficulty. You don't really need to minmaxing to beat it.
In fact, unless you are going for a challenge run like no breeding, no dismantling or some other kind of challenge
there isn't any reason to go for it since it was unnecessary stressful and it doesn't really helping you that much
since you would normally reach midgame by that point. What actually matter is the upgrade system and pixy.
You should focus on upgrade to create more pixy faster and expand your farm, then you can overwhelm them with
just a sheer number (Just like any other management game with auto system).