By "internet" do you mean through a web browser? If so, something like ExileAPI won't work for you anyways. GGG may not be able to run anything with their anticheat in that sort of play space... so there would be no reason to mess with limited user.
That said, maybe the Kakao version has their own anticheaat somehow? Like if they force you to use their launcher or something. Then you could try launching it as limited user, but there is no guarantee they aren't using something low level.