I'm 60, and was sick a great deal from about 3-8. I was taught a speed reading method to keep up with my class. I also have extraordinary memory skills...not quite Marilu Henner...but close.
So, I tend to have great retention which has been a blessing and a curse. I mean, school was stupidly easy so I never learned how to study or do research; I could just read the material and take the test.
Speed reading is good for some folks, I'd say. But, it may cause you to be a little lazy and undisciplined.