Thanks for the explanation as to why the app doesn't have 1 Hz option. I wanted to ask something else, which I found had already been asked here by another person. When I use adaptive 10-120 Hz (or 10-96, ...) the screen jerks as is switches from 10 to 120 Hz upon touch. Samsung's own adaptive mode also switches from 1-120, but it never has any jerkiness. In your app, 24-120 setting also has no jerkiness. Does this mean that Samsung's own method doesn't go down to 10-1 Hz as quickly and as often as your app does? So, is it inevitable to have this "lag feeling" when using 10-120? Or does Samsung have a better algorithm that prevents the jerkiness when it goes down to the lowest refresh rate and jumps back up from there to 120?