there should be some sort of radius check for vampires because way too many vampire hunters r spawning on my server, and if there already is maybe turn it up or make hunter spawning togglable in config or smth because it is way too much

I took one sip of a villager and had an entire army spawn. If the amount of hunters scale with the amount of vampires, the issue is probably that it was finding vampires hundreds or thousands of blocks away, and spawning more as a result.