Input scan delay in arcade controls can significantly impact gaming performance, leading to frustration and missed inputs. To minimize this delay, consider the following methods:

1. Use High-Quality Hardware: Opt for arcade sticks and buttons with low latency and high responsiveness. Brands like Sanwa and Seimitsu are known for their quick response times.

2. Optimize Firmware and Software: Ensure your arcade controller's firmware is up-to-date. Some devices allow customization of polling rates to reduce input lag.

3. Direct Connection: Avoid USB hubs or extensions, as they can introduce additional delay. Connect the controller directly to the gaming system or PC.

4. Enable Game Mode: Many modern displays have a "Game Mode" that reduces input lag by minimizing post-processing.

5. Test and Calibrate: Regularly test your setup with input lag testing tools and adjust settings for optimal performance.

By implementing these strategies, you can achieve faster, more accurate inputs and enhance your arcade gaming experience.