Expanding RSS feeds to more than 10 threads?

[Chapbass]

Hey all, I'm just getting into RSS feeds, and I notice that when I add the main AT RSS feed, it only shows like 1-3 threads for each subforum, and often those threads are not the most up to date threads.

Even if I add the individual subforums, I only get 10 or so threads.

Is there a way to change how many threads I get, and also how often it updates? or is this a server side setting?