I noticed that some page loads were very slow (like over 10 seconds!). It was due to me forgetting to include a database index on a common query. Anyway, the index has been added so now loading your workspace should be zippy again.
I’m in the process of a major re-write of the javascript. The new version will be more standards compliant, easier for me to add features, and maybe even faster. The downside is that it will break any javascript hacks people have written. If this is a major problem for anyone, you should email me (tony at ponderer dot org) and we’ll try to work something out.