The shiurim of [R' Moshe Meir Weiss][1] are very concise. Many are 15-30 minutes, though some run quite a bit longer (depending on the complexity, I guess). 10 minutes sounds like a completely unreasonable (and comprehensible) speed. It might be useful for review purposes, but that's about it. [1]: http://www.kolhashiurim.com/New/Ravs.aspx?Path=English%7CEGmr%7CDafHaYomi%7CR7004-1-4&English=True