Only taking the top 100 online scores makes good sense.
The fastest win score is cool.
To be honest I got the highest adventurer and highest keeper high scores by farming dungeons and farming invaders. In the next version, you could also remove the scores that took over 50k turns. This would put a time limit on the farming. Leaving the game running overnight with the space key glued down to dismiss warnings about invaders should not really count 😉