Thank you for the kind words. It is appreciated. Be sure to review the app in the App Store with a text review. That is the best thing you can do to say thank you to the development team.
Since the video feed is happening further into flight you may want to make sure that you have 'Auto Clear Image Points' turned on in the User Interface section of the Settings. Drawing all the dots can be a bit much for some older processors. This feature expires them after 30 seconds so they don't accumulate and leaves more GPU resources for the video stream. Hide the Nearby Mission Plans too if they are on.
In general, the lowest spec iPad mini we are recommending at this point is the Mini 5. The DJI SDK recommends using an A10 processor or better so that goes for Map Pilot Pro as well.