I am not a photo reader but I have seen Paul Scheele's demonstration on video.
So my answer to you is that it depends on the purpose. If your purpose is to gain information/knowledge, then photo reading should help you. But I dont think photo reading a novel/fiction will be beneficial, because the whole point of reading then is to enjoy the novel.
I dont know if photo reading will help you improve your language. Something to be experimented......As mentioed in the previous post, you need to write to improve your writing skills.
Worst case - If photo reading does not give you anything from the book, read it the normal way
