I’ll have a look in the next bit; I’m aware of a performance issue with long (300+) posts loaded at the same time, and unfortunately this solution doesn’t work right out of the box (or, rather, it does speed up the performance, but it breaks several things like hitting ‘up’ to edit your last post, and automatically updating posts when people edit or delete them, etc.)
So I’ll have to dig a bit deeper into that to figure out a fix; it’s definitely on the list of things to work on.
EDIT: This should now be much improved by this commit; let me know if you’re still experiencing problems like this on latest @gkln?