It should be simple. Just use 360 degree distance and it should be close enough. viewspeed is I believe for flicking, as it matches that in your screenshot. But also too, the fov difference matters since you can either have viewspeed or 360 distance, but not both if the fov is not the same (90 in csgo doesnt technically mean 90 in pubg either). I may not be correct on any of it but thought I'd reply back to help