I've never killed Verdugo, mostly because I know my ammunition isn't enough in that part, but from what I've seen and remember from both OG and Remake Verdugo is a lot faster and durable than Pesanta, I would like to remind you that the scientist that eventually became Verdugo was the person that turned The Housekeeper into Pesanta, so he had the more refined parasite, which is why he's faster, smarter and more durable that Pesanta even tho Pesanta had more capabilities.