A realistic maximum of 1,600 riders an hour is not fantastic. It's fairly miserable when it comes to E Tickets.
In the first couple months of operation at the Disneyland version, the Millennium Falcon ride averaged 1,387 per hour, because you are never going to have perfect 1,600 per hour for hours after hours, days after days, especially in the first few months when the CM's are working through a learning curve.
It's easy to imagine that the DHS version is getting the same averages per hour as the identical Disneyland version.