anyone else is a slow reader?

I've been wondering why I don't end up reading a lot of works each months, I decided to stop all hobbies except reading, with like minimum 4 hours of daily reading (all forms not just comics) and I still end the month with like 1 book 1.5 journal entries 3 manhwas + manga
I'm sloooow and I've probably always been but never noticed
I wonder how yall finsh longish works in a single night