I have an LG G8 too, when I start recording in Motioncam Pro in 4K, I'm running out of memory and have a strong frame drop. How did you do this? What are your settings or something else? Thanks.
I have LG G8 in motioncam pro app, when shooting video even in 2K the frames shake, while nothing extra is running in the background. And the memory is enough! I do not understand what is the reason. How did you manage it? Thanks.