[Kwant] Speed/memory difference btw no hopping and hopping=0.0

Dear all, I have a question about speed/memory performance. If I define 100 lattices with hoppings within and in between the lattices, but define most of those hoppings to be 0.0, does this lead to a significantly slower execution than not defining any hoppings at all? (It's related to the code I'm working on that I described in my email with the subject "Dynamic number of lattices"). Thank you all for your concern and time. Cheers, Baris