I always read "out loud" in my head. I've heard you can read faster if you don't. But, I don't know if that's always better. When I try to speed read, my comprehension goes way down. (I've actually heard that that's pretty common.) I'm the opposite of you. I need to "hear" the words to fully comprehend them. Which is strange, because I also have trouble comprehending when I'm read to. I can't do audio books, because my brain does not compute. I don't pretend to understand it.

Of course, I also have ADHD, dyscalculua, and who knows what else. My brain is very strange.