When sorting all/finished competitions on data intensive columns - Xp Gained, Participants, or Top Competitor - I actually limit it to only show results within the most recent 1,000 competitions. Ideally this limit wouldn't be in place, but I had to do this because the page was crashing/timing out if it had to do any more, because for those 3 types of queries (unlike simple ones such as Start Time, Tracker ID, etc.), it has to individually go through each competition to calculate the data which is very resource intensive.
At some point I'm hoping to find a fix to allow the Xp Gained sort method to display all competitions, but it hasn't really been much of a priority as it's not really an essential feature.
Good catch though, thanks for reminding me about it!
