on the main DJI Go window, on the right side there should be a gear icon, or a slider type icon. If you tap on that camera settings will open. One of those options will be resolution. You can pick the resolution and right below it will be a box showing 24fps, 30fps, 60fps, etc. Pick the one you want (30fps) at the resolution and you should be good to go. i blatantly stole this image from google as an example
Try better video card. That solved my problem with my desktop. Doesn't have to be a real expensive one either.
My laptop has had no issues playing a P3A created 1080p 60fps video.
Both my PCs are running win10.