Have a pen in hand to run under the words, as if you were underlining. Because our eyes are “hard-wired to follow a moving object,” they will eventually learn to move faster and begin to “absorb whole blocks of text.
Keep quiet. As children, we implicitly learn subvocalization, “the process in which you hear the words in your mind as you are reading.” But that slows us down. Instead, hum softly as you read to “drown out” the subvocalization. After a day or two, you’ll be able to stop the humming.
Practice makes promptness. Try these methods for “15 minutes a day for 21 days,” and speed-reading will eventually become routine.