I made a few changes to how some of the games metadata is stored so in the next content update (1.1.2.0) you should see some improvements to start-up times. I'm talking about those who have up to ~30 seconds loading times. For those who go into multiple minutes, I'm not sure what could be happening, but I suspect there's something external that's slowing down the process - such as an anti-virus. For some reason, our game has always looked suspicious to AVs.