When in text view (on the dev.newsblur.com redesign, at least), scrolling to the bottom of the list loads the next 12-ish stories. This is way too few, if one is just skimming through the page.
I’d suggest: loading the next page before you actually hit the bottom of the window, so there’s never a noticeable stop. Also, scale the number of stories loaded based on window size so that hitting page-down would always display an entire new set of stories.
Happens in Feed view as well. From what I can tell, it does start loading a little before you hit the bottom.
However, I do find myself hitting the bottom and waiting A LOT. It’s probably my main annoyance with newsblur right now. I was hesitating from complaining yet because I know a lot of it has to do with the scaling issue Newsblur is currently facing.
But I would agree, causing it to load earlier and loading a few more items at a time would probably help tremendously. But it might increase the load the site faces right now…