It subvocalizacion you prevents read to more than 150 words per minute. Is it hobby or habit of repeating, mentally, whispering or moving them lips what is lee. Corrected this habit can be read up to 250 ppm. To eliminate the habit there is that practice much, to the principle not is understood nothing of what is lee but with practice is can get perfectly.The trick does not repeat the nondiscrimination way read