Followup: Most of the people for whom the website was loading slowly are finding vast improvements as of this afternoon (one by one, over the last hour. Woohoo! 🙂 Thank you for looking into this and sending some ideas. Hopefully it’s just one of those things where it has to propagate (??? or something like that, haha), and it’ll be back up to its fast performance for everybody soon.
Thanks again! And I’m still loving this theme (and the support)!!!