Hello Everyone Wireless Printing issues Here

I have 10 Imacs that hook up to two epson printers, one is 7900 the other is a 9900

I am using a AirPort Extreme with two airport express one attached to each printer

They are conected to the 5ghz wifi

The Problem I am having is sending the files from Lightroom or Photoshop to these printers

It would take about 1:30" for a 13meg file to connect from seeing the printer proxy to the printer begin to print

Likewise a 500meg file takes about 3:30" and than stutters when it is printing at takes about 20mins to print.

Is there a way to make this a tad faster with the wireless?

Cheers

Jonathan