>>24616164 (OP)
Yes, just accept you are retarded. I am retarded too. Subvocalizing is just more enjoyable for me. Most people here probably want to kill me because of that opinion.
But the degree of subvocalization, visualizing and the reading speed just depends on what you are reading.
Bernhard is very lyrical and thus slower reading and more subvocalization.
Arno Schmidt is slower reading and more visualizing.
Houellebecq is faster reading and little visualizing.
So it may depend on what you are reading. Concentration comes with time. Maybe remember to keep your body relatively healthy. If I am consuming a lot of artificial sugar I can concentrate less for the next 3 hours. Maybe increase caffeine intake and then slowly decrease it. Have more daily activity. it may be that it is also caused by stress. If you are as retarded as me, you can try help a little with alcohol. A certain (little) amount helps to think less about tomorrow and you may focus more on the moment (the reading).