During January 2026, Chinaux focused on enhancing the segment fetching performance in the alibaba/zvec repository. They developed a feature that streamlined the data retrieval path by simplifying function parameters, optimizing the handling of local document IDs, and removing redundant code. Working primarily in C++, Chinaux applied performance optimization techniques and validated the changes through targeted unit testing and code review. This work improved the efficiency of data fetch operations and reduced maintenance complexity, addressing potential edge cases. The depth of the solution established a solid foundation for future scalability improvements while maintaining correctness and reliability in the codebase.