Immersion reading really helped me. Read and listen at the same time. Kindle does it really nicely, but you can diy it as well. Just grab some audiobooks and their pdfs and start your audiobooks at a comfortable speed and slowly try to increase the speed. It is transferable as well. After a couple of books you’ll hopefully notice that you can both listen in higher speeds as well as read a bit faster as well assuming similar material and narrators ofc.