4 points
Your sorting is working properly. When you sort by active, you’ll get posts that people are actively commenting on. When you sort by hot, you’ll get posts that lots of people are looking at, and when you sort by new, well, those are the new posts… so 10 seconds seems about right.
It works the same on Reddit. It’s just that there’s a lot more users, a lot more engagement and a lot more overall content over there.
