One way to read a novel fast is to have a good understanding of the genre and style of writing. That way, you can predict certain elements and move through the text quicker. Also, don't get bogged down in details that aren't crucial to the story.
Well, to read a novel quickly, you could train yourself to read in chunks instead of word by word. And make sure you have good concentration and a quiet environment to avoid distractions.
One way to read a story fast is to train your eyes to take in more words at once. Also, have a clear purpose for reading, like just wanting to know the basic plot. And don't go back and reread unless it's really necessary.
To read a novel quickly, you could start by previewing the table of contents and chapter headings to get an overview. Then, read at a consistent pace without getting bogged down in small details. Another tip is to not stop and look up every unfamiliar word; try to understand from the context.
You can start by building a basic vocabulary of common Japanese words and phrases used in visual novels. Also, practice reading regularly to improve your speed and comprehension.