For the first 40-50 hours I played on the slowest speed...now I'm finding that way too slow. Therefore for my first opportunity run I now play on the middle speed - seems a good pace as things don't take an age to build and drones/vehicles move at a more sensible lick. Will only now stick it on normal if I need to have a good old think about something. Will sometimes stick on top speed if just waiting for a long build to finish or a rocket to get from earth.
What speed do you play on?
What speed do you play on?