| FPS | Frame time (ms) | Frame time (μs) | Typical input lag (≈1.5 frames) |
|---|
How the math works
Frame time (ms) = 1000 / FPS. A 60 FPS frame takes 16.67 ms; 144 FPS takes 6.94 ms — about 9.7 ms saved per frame.
End-to-end input lag is roughly 1.5 frames in most engines (sample, render, scan-out), so faster FPS shortens that whole chain. Real input lag also depends on monitor scan-out, USB polling, and game engine pipelining.