Weiqiang Wan focused on improving the stability and telemetry accuracy of the intel/xFasterTransformer repository by addressing a resource management issue in the Embedding Timeline Statistics feature. He identified and fixed a bug in C++ where the timer object was not properly released after use, which previously led to resource leaks and inaccurate timing measurements during long-running embedding runs. By ensuring correct timer lifecycle management, Weiqiang enhanced the reliability of embedding metrics and reduced unnecessary memory consumption. His work demonstrated a strong grasp of performance optimization and resource management, aligning the codebase more closely with production-readiness standards for high-performance computing environments.