Does convention of in- & output params to groups adds computation time?

I always find it a good practise to have input and output params at both edges for any data that goes outside the group. Metahopper even has a component to do this.


Does this actually increase computation time? And if so, is there a method or a rule of thumb to establish how the amount of % of the total computational time this actually is?

In my script i have have probably over 200 of such params.