learn to read more you lazy bastard
every visual novel takes much longer than the average book
any generic book from a novel series you find will take maybe 12-15 hours to read, but visual novels are considered short if they're less than 20 hours long, and 40 is normal, and some of them can easily reach 80 hours long
you're really limiting yourself if you think length is an issue, because ALL visual novels are super long by book standards