Why is providence easier than moonlord??

Its my first playthrough in calamity(50h total terraria + calamity) and i defeated providence in 1st try( almost no hit) playing on revengence with true melee and i have feeling that moon lord was way harder(it took me like 10-15 tries)Im not using any post providence weapons im just copying yt true melee builds.
So is the providence supposed to be easier than moon lord?