Is there any way I can stop my character from running around checking every single corpse?

This is not affected by the combat profile and is a general bug with the free version. There is nothing you can do about it that I would know of (except turning off looting as a whole).

that's why if you are going to use the free version, never afk bot. Jump around a lot mix it up a little bit between self grinding and botting. This way they can't catch you as easy. But they are definitely going to catch you if you use the free version as it will always run to other people's corpses. Try to find your own areas that work that are less traveled.

Just buy the paid version, it's way better and has a GUI, not to mention a ton of custom made profiles for farming and combat. And it's only 5 eur.