Input latency in arcade machines can significantly impact gaming performance, leading to frustration for players. To optimize input latency, consider the following methods:

1. Use High-Quality Hardware: Invest in responsive joysticks, buttons, and controllers with low latency. High-quality components reduce signal delay.

2. Optimize Software Settings: Ensure the arcade machine’s firmware and game software are up-to-date. Adjust settings like vsync and frame rate to minimize lag.

3. Reduce Display Latency: Choose monitors or CRTs with fast response times. Enable gaming modes if available to reduce input delay.

4. Wired Connections: Prefer wired controllers over wireless ones to eliminate Bluetooth or RF latency.

5. Test and Calibrate: Regularly test input devices and calibrate them for optimal performance. Tools like latency testers can help identify bottlenecks.

By implementing these strategies, you can achieve smoother gameplay and a more enjoyable arcade experience.