I recently sought advice in another thread about a lengthy lag-time in video streaming from my P2V+ to my iPhone 5. I was advised to go into the Settings on the DJI App and reduce the Preview Quality so I dropped it from 640x480 30fps to 320x240 30fps.

When I tried to use Ground Station the background maps wouldn't display so I switched the preview up to 640x480 15fps which resolved the issue and got both features working.

I thought that I'd share this feedback but not sure how it affected androids or tablets.

Thanks for sharing.