For competitive fighting game and rhythm game players: the ZIP update introduces a handshake protocol that forces controllers to report every key state change in a fixed 0.5ms window. No more missed directional inputs during high-pressure strings.
| Metric | Stock Windows | Synaptic v5 | Synaptic v6 ZIP | |--------|---------------|-------------|----------------| | Average click latency (mouse) | 4.2 ms | 2.8 ms | | | Keyboard matrix scan deviation | ±0.8 ms | ±0.3 ms | ±0.09 ms | | USB interrupt-to-render delta | 5.1 ms | 2.4 ms | 1.2 ms | | Background input smoothing | Yes (forced) | Partial | None | synapticskillerv6zip upd