Priit Puru enhanced the TEHIK-EE/tedi-design-system repository by developing a performance-oriented feature for the Select component. He introduced a cacheOptions prop, implemented in TypeScript and React, which allows developers to control whether dropdown options are cached, defaulting to true for optimal efficiency. By updating the SelectProps interface and integrating this prop, Priit reduced redundant fetching and processing of options, directly improving form responsiveness and scalability in applications using the design system. This work demonstrated a focused approach to front-end development, emphasizing type safety and maintainability, and addressed a clear need for lower latency in complex, searchable select components.