Look here for a complete description of the setup and documentation of the performance issues:
To put it briefly:
The Vero is wireless. It is almost in line-of-sight with the router and less than three meters away.
The pi B+ is wired to an old Airport Express. It is about ten meters and two concrete walls away from the router.
When I had a Pi B and an Airport Express where the Vero is now, there were no throughput issues.