Slow connection speed

Hi,
I have a 2011 mac mini i7 running a 1080p display.
I'm connecting to the display using an ipad 3 over N wireless but see a screen update maybe once a second (mostly once every 2 seconds).
Is this the speed I should be expecting?
I certainly cant use the program to control programs on the mac.
Is there anything I can do to improve the speed?
Thanks in advance
David
I have a 2011 mac mini i7 running a 1080p display.
I'm connecting to the display using an ipad 3 over N wireless but see a screen update maybe once a second (mostly once every 2 seconds).
Is this the speed I should be expecting?
I certainly cant use the program to control programs on the mac.
Is there anything I can do to improve the speed?
Thanks in advance
David