Snake hitboxes on Hilly terrain

The hitboxes off the snake enemies are terrible if your using an AOE spell in hilly terrain... Maybe its specific to my current build (im playing a whirling slash Litch), and maybe i shouldnt complain because this build is quite overtuned at the moment anyways ^^ but ive bee experiencing quite some annoying situations esspecially in hilly Maps (like Steppe for example) when confronted with the snake enemies, because theyr almost impossible to hit sometimes. I dont mind the High ground/low ground mechanics at all its just with this specific monster type, were it is driving me crazy!!!