HI! This may help. From the PhotoReading book:

Extremely fast readers are visual readers. They rely on a direct connection between the eye and the brain. They do not need to subvocalize—that is, mentally hear the words on the page—in order to comprehend written materials. Studies indicate that subvocalizing is not critical to comprehension. Subvocalizing every word guarantees you can never read faster than the sound of your own voice can speak (about 220 words a minute is tops). Experiment with breaking your personal “sound” barrier. To learn this system well, push your speed, trusting that comprehension will indeed catch up.

Patrick