Worked on enhancing hover interaction performance in the adobe/react-spectrum repository by optimizing the useHover hook. Focused on reducing unnecessary global pointerup event listeners, the changes minimized event handling overhead and improved responsiveness for hover-enabled components. The technical approach involved conditionally attaching global listeners only when required, which helped lower CPU usage during user interactions. Additionally, introduced a TypeScript type annotation for the handleGlobalPointerEvent function to strengthen type safety within the codebase. Leveraged front-end development skills with React and TypeScript to deliver targeted performance improvements, resulting in a more efficient and maintainable implementation for interactive UI components.