Hello and Welcome!
I am happy to report that we are, in fact, an active community :) Development doesn't necessarily move quick, but it is ongoing. People are playing daily though and we also host tournaments at conferences around north america throughout the year.
The server was acting a bit weird due to a couple reasons, most of those being my fault. Thanks for pointing it out! Should be fixed now, tic time is down to about 3 minutes per tic.
Hopefully the server won't be too slow for you now. Due to the nature of the game, sometimes some slow queries are just inevitable but most basic quires should respond within a couple seconds.
If you happen to frequent IRC, we do have a channel on freenode, #schemaverse, which has around 15 people on it these days. We are happy to help with any questions you have about the Schemaverse and SQL in general.
Enjoy the game. If you just started and already feel hooked, you are about to learn a LOT about SQL and Postgres and have a great time doing it.