I'm seeing no lag with the Android tablet via wireless. I did, however, have lag once with the iPhone via wireless. Not sure what that was or if it's related to the CarPlay interference I'm having .
May I ask if you experience any video lag when using a wireless connection? After all, wireless transmission doesn't seem as reliable as a wired connection.
I'm using a 10" Android tablet with the HUD setting using the CyberBOX app wirelessy attatched to the Robofinity system controller. It is mounted via a dash magnet at an optimum angle and postion for proper viewing on the windshield just above my line of sight of the highway.