Yes, it is at least as long as most full-priced metroidvanias. I don't think any speedrunner in the world can do it in 30 minutes. Under 5 hours would be a huge achievement even with glitches, which don't seem to exist so far.You're making good progress though. I'd say you've completed about 75% of the main game.
Do you have any good advice on how to kill those damn hell hounds?
I currently jsut visited sky village, cant advance there any further since the missing key card is likely behind a currently impossible puzzle in the west.
and on the way home, i cant really make it past that one big room with the 3 hell hounds.
I jsut dont have the skills to avoi them and they go into yellow ode as soon as you press any button.
cant manage to kill them currently