First of all, Windows v0.5.1 refined UI and improved stability in general.
Secondly, the new Eien server uses Cloudflare global CDN so that it automatically chooses the best server entry point according to your physical location.
Last but not least, we have launched a referral system where you can get credits by referring other people to Izumo, and spend the credits for you subscription. Check out your Dashboard for the new referral system.