At least some progress screen to show you've started the program would help.
One major issue is that sitting in the menu seems to use 100% GPU. I can't see any reason for that, especially when the game often runs at 90% GPU for me.
It seems to be multi-core aware, but multithreading is definitely leaving a lot to be desired. Modern CPUs with 8 cores (16 vcores) seem woefully under-utilised.
Turning on vsync tanks frame rate by about 6 or 7 fps for me. "Popping out" a navigation window and putting it onto my second screen also causes around a 4 to 6 FPS drop.
This is definitely a "release broken, patch later" build. I do like the game, but I fear the extent of "patching" might not fix the fundamental performance issues that probably need a rewrite of much of the core simulator engine itself. No software should take 30+ seconds to appear on screen with any indication it's loading. I get the feeling the devs have focused so much on feature development that no time at all went into performance optimisation, and that's a shame as this game has such real potential.
