More server status information coming soon. For now, here's the current item study rate for the site, in items per second: 1.33
(If that's really low (less than one), then the site is probably going slowly for everyone.)
You can also check the App Engine system status pages for Python apps, but they are not very reliable. We are hosted on Google App Engine, so if Skritter is going slowly or having serving problems, then the Google App Engine team has probably been paged and is working to restore performance.
If you are unable to access Skritter well enough to do your study, either due to Skritter server problems or connectivity problems on your end, let us know and we'll add extra time to your subscription, to help make up for the lost time. Sorry for the frustrations!