first, have a look at http://store.steampowered.com/stats/. lovely, isn't it?

By the way, if you have a fast computer and use win7 64bit, changing the Java virtual machine in "common\spiral knights\java_vm" to jre 7u2 64bit reduces the level load time up to 40% (12.9sec vs 4.8sec) plus i get 40% more FPS.
But you need to have steam overlay deactivated. it does not work with 7u2.