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When you click your mouse, you want your game to react instantly. But between your finger pressing the button and the gun firing on screen, there is a delay. That delay is Click Latency.
Click Latency is the total time it takes for a physical switch actuation to be effectively processed by the computer. It includes mechanical switch travel, firmware debounce time, USB transmission (polling), and OS processing.
Mechanical switches vibrate when hit (bouncing). To prevent the mouse from registering 10 clicks instantly, firmware waits for the signal to stabilize. This wait time is 'Debounce.' Higher debounce = slower clicks but no double-clicking. Optical switches solve this by using light, requiring near-zero debounce.
Modern 2.4GHz wireless mice (Logitech Lightspeed, Razer HyperSpeed) are often FASTER than wired mice because they are optimized for data transmission. Bluetooth, however, is significantly slower (8-15ms+) and should not be used for competitive gaming.
| Type | Latency Range | Verdict |
|---|---|---|
| Optimized Wireless (2.4GHz) | 0.2ms - 1.5ms | Esports Ready |
| Standard Wired Gaming Mouse | 0.5ms - 2.0ms | Excellent |
| Office Mouse (Bluetooth) | 10ms - 20ms | Unusable for gaming |
| Cheap Wireless Office Mouse | 15ms - 30ms+ | Noticeable lag |