I avoid this problem by not reading with an internal voice.
I just see the word and read what it says, I don't need to mentally vocalise it.
( Bob Todd, Groincrusher General Wrath of the Lich King is MINT!, Sun 18 May 2008, 10:43, archived)

^This

( The Baroness I'm not breaking down, I'm breaking out, Sun 18 May 2008, 10:44, archived)

It blew my mind when I heard someone "reading to themselves" quietly when reading something out of a book.
The inefficency is staggering!
( cr3 looks cute, but has guns, Sun 18 May 2008, 10:44, archived)