Render and Update Custom Objects

hello all,
I have a kinda of question regarding a very common thing.
I am taking in example the Unity’s (game engine) way of dealing with different Methods and I am wondering if this is something which should be applied in my vvvv patches or if it is already being managed (automagically) by vvvv itself.

Unity for instance has a differentiation between the Update method and the Rendering method.
If I do remember correctly (I ll take again a look to verify it) Unity Updates the summoned Object every single tick and Renders only every frame (respecting the interval - if it is assigned to 30FPS it will Render with a delta of 1/30) but the object may be updated several times in the meanwhile).

I have a suspicion that this can be a misunderstanding on how one of the two is working (vvvv - unity) but would be worthy to implement it if it is not yet there?
Are observables an answer to my question?

Reasons that lead me to this question - considering the overall performance - are basically different types of Updates (several objects with different interfaces connected to multiple sources (inputs) ) and lots of different Renderings (ie GUI and a custom made Engine rendering ready made patches feeding spout or/and ndi)

thanks in advance!