There's no substitute to this other than READ, READ, READ. I also had trouble with my reading speed when I first started studying for the DAT. I decided to read online news articles every day for a month (newsweek, cnn, scientific american, economist...to name a few). Scientific American is really good because it's often packed with technical details. This dramatically increased my reading speed AND comprehension. I'm not sure how much time you have, but I'd scrap the idea of a reading course, save some money, and get reading! Good luck!👍