I suggest that you interact more in the Hubpage community and continue to write quality and relevant articles.
Oftentimes the writers who have scored 100 as I have with my first Hubpage account are writers who consistently write quality articles daily and concentrate more on the content of the article instead of the Hubpage score.
The Hubpage score is often generated electronically according to the number of times keywords are clicked upon as well.
I would take the Hubpage score more seriously if the writing was scored on the rubric grading a thesis for an example.
So just produce your best work and pay less attention on that Hubpage score. Your hard work will get rewarded either with an increased Hubscore or an increase in Google Adsense earnings.