I would say that i am an slow-average reader, most of my books however are more comprehensive, which is why i cant read too fast in order to comprehend what i've just read.
So i seen some faster reading methods like >limit the eyes movement while reading or do not go back to the previous paragraph.
what are yours? to me reading fast is without distraction, if i have distraction like my mind wanders then i will have  a bad time reading.