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The latter sounds fishy for succubi, that’s not what they’re for. I don’t think they need to be “attached” like this, which is behaviour associated more with regular parasites, though some would argue that’s what succubi are anyway, so maybe it’s normal.
I don’t think if you can get them to dial this back. The more they feed on you the stronger they get and the weaker you get, and eventually you won’t be able to do anything and may start getting sick from the lack of energy.
Have you tried talking to the entities explaining this to each of them and asking them to stop possessing you. The outcome of that conversation can be very telling. If they are apologetic and compliant, and follow through on stopping the unwanted behaviour, you’re all good… if they’re intractable or belligerent, banish and cleanse, just get rid of that one, it’s a bad relationship and you can’t keep it and stay well.