If I have no genuine purpose in photoreading a book, will that affect me being able to photoread and activate the book?

You see, I've photoread the book which is part of the course, "The Photoreading Whole Mind System", however, I seem to have no genuine and real purpose in photoreading the book. My only purpose in photoreading the book is the experience photoreading and being able to activate the book. Of course, I would love to learn how to photoread, but I'm just worried, that as I have no genuine purpose and no sense of curiosity, that it's preventing me from activating the book.

I know, people have said don't try learning how to photoread through textbooks. But as I genuine purpose and interest in reading them, would it be okay to attempt to photoread even just one chapter of one of my textbooks (noting that there are 15 chapters in my textbook) and activating the chapter.