Using KMSPico can potentially affect your computer’s performance in several ways. Since KMSPico is not an official product and might be bundled with malware or bloatware, it can lead to system slowdowns, instability, and other performance issues. Additionally, because KMSPico operates by modifying system files and settings, it could create conflicts with your operating system or other installed software. To maintain optimal performance and system stability, it’s recommended to use legitimate software and avoid unauthorized tools like KMSPico.