The review itself is rarely the slow part, since most of the time goes into waiting, whether that is waiting for the vendor to send documents, chasing missing items over email, waiting for a reviewer to get to the file and then going back and forth when something is incomplete or out of date.
Cutting that time means catching problems the moment documents are submitted rather than weeks later, telling the vendor exactly what is missing and keeping the review moving without someone having to manage every step by hand. That is the problem vendor vetting in Interface is built around, since the bottleneck is the back and forth rather than the reading.