Do too many sattelites slow things down?

Hi, 

I am moving to a new house where I suspect there will be wifi dead zones.  

I havent yet bought a system, however I'm looking at getting the Orbi AC3000  router with possibly 3 sattelites.

Question - is it possible that too many sattelites may actually slow connections down?  

I was planning to use a wired backhaul to the sattelites

Ignoring all obvious issues such as it is cost , more power requirements etc. 

Thanks