NitroPack.io optimizes website performance through various techniques, including caching, image optimization, and potentially using AI for automatic adjustments and optimizations to improve load times dynamically. The service is designed to be easy to use, with no technical skills required, suggesting that it might employ AI to handle complex tasks seamlessly behind the scenes. NitroPack.io claims to be the all-in-one site performance optimization solution, indicating a comprehensive approach to improving website speed and user experience, which could involve AI to analyze and optimize web content efficiently.