The slight lag of you seeing movement on your screen is normal. It shouldn't be seconds though. It should be a fraction of a second. The best advice for quick camera settings is set your aperture at around 5.6 1/2 or so. Set your bird on 4K recording at 30 frames per second. Now your goal is to get your shutter close to double your frame rate which will be 1/60th of a second. Turn on your histogram in your camera settings menu and learn how to understand it somewhat. You may need to purchase some ND filters to get this formula close to what I have mentioned as far as exposure goes. Keep your ISO on 100 for all your video in the daytime. Then you can go higher with it if you ever fly in the night. I would not ever go higher than 1600 ever though as noise gets pretty bad. The sweet spot aperture for this camera is around F4 to about 5.6 1/2. So I try to stay in that neighborhood as much as I can. You can use Auto everything if you want, but you'll notice your exposure changing on you all the time and that can drive you nuts. LOL There are many Youtube vids talking about optimum camera settings btw. Hope this helps some.