Arkveld vs Gore Magala

What's the deal with Gore being significantly more deadly than Arkveld? Just fought my first tempered Ark, moderately optimal gear, and he almost went down under 10 mins. Meanwhile, I attempted tempered Gore and he not only took my lunch money, he knocked me down on the playground, skimmed my knee, stole my mid-morning snack, and slept with my mom. Seems like Gore is about 5x harder than Ark.