In my view the best way to have a design review approval faster is by sending in the documents well ahead in time to the review meeting attendees well in advance as Dr. Simon mentioned so that the attendees have well enough time to review the necessary details and have an overview of the changes needed to be made and know what would be the topic of discussion at the meeting. Also by having the design review report structured in a way that will suit the situation of the design and as Ryan mentioned about having the report clear and detailed for the attendees would help to some extent.