Button input lag in arcade controls can ruin the gaming experience, but there are several effective methods to prevent it. First, using high-quality microswitches ensures faster and more reliable button responses. Second, regular maintenance, such as cleaning contacts and checking for wear, helps maintain optimal performance. Third, reducing signal interference by using shielded wiring and proper grounding can minimize delays. Additionally, firmware updates for modern arcade boards can improve input processing speed. Finally, opting for low-latency displays and controllers further enhances responsiveness. By implementing these strategies, arcade operators and enthusiasts can enjoy seamless and lag-free gameplay.