Worked on the doocs/md repository to optimize scroll performance and resource management in a Vue.js front end. Refactored the scroll event listener to minimize CPU usage during heavy document scrolling, resulting in smoother user interactions and reduced memory consumption. Improved file handling by revoking object URLs after blob downloads, addressing potential resource leaks and enhancing overall stability. Addressed a bug related to the back-to-top scroll listener and blob download flow, ensuring more reliable event management. Leveraged JavaScript and TypeScript to implement these changes, focusing on state management and delivering measurable improvements in both user experience and application resource efficiency.