I am using a wireless N router from my ISP and I found that AirPlay doesn't perform too smoothly from my 3nd gen iPad to my 3nd gen AppleTV, especially on mirroring video and games. It skips frames often and video doesn't match audio..... Although the router is wireless N but it is only single banded at 2.4Ghz. Will a dual-band Apple Airport Express / Extreme improve AirPlay performance? Thanks