Why? If you're reading for leisure, sure, but if you're reading for information or experience, it makes sense you'd want to read as many books as possible, hence as quickly as possible.
If you're trying to gain information and experience then it is silly to try to optimise for "How many pages have I looked at?"
You need to come to terms with what the author is claiming, critically evaluate the argument used to support those claims, and then decide the relevance of this new perspective on the world (eg, how will you implement it in your life?)
