RealNC wrote: ↑23 Feb 2022, 08:31
On paper, the lower the floor, the better. However, there are no guarantees about avoiding flicker. I've seen posts by people using native g-sync displays (those have a floor of 1 (one) Hz) who still report flicker issues.
In reality, wider VRR ranges produce better low-framerate performance.
48-240Hz ranges seem to produce better 20-40fps motion than 30Hz-144Hz ranges.
This is due to briefer LFC penalty (0.5/240sec stutter versus 0.5/144sec stutter error)
On AMD cards, sometimes raising the min Hz higher (on a FreeSync / G-SYNC Compatible) via ToastyX CRU FreeSync range edit (CEA-861 extension block), reduces flicker a bit, by forcing LFC to start at a higher frame rate, and less subject to flicker via LCD decay effects or from slower LCD voltage inversion logic.