[Raymonf]

I found that my Discourse instance consistently took ~250 milliseconds to display the forum post list (according to the little box at the top left corner). After getting annoyed with Discourse, I went back to Invision Forum and I see about ~95 ms for the same thing, including sending the response to my browser.

[danielheath]

Those are both unreasonably slow in a way that has little to do with the language.

Optimizing responses has diminishing returns once you're below 100ms, but 250ms is far too slow.