Worked on the intel/vpl-gpu-rt repository to deliver a concurrency optimization focused on reducing mutex contention in the fast copy path. Addressed performance bottlenecks by unlocking the mutex before executing the copy operation and relocking it afterward, which minimized contention between decode and fast copy processes and improved overall throughput. The work required strong proficiency in C++ and a solid understanding of concurrency control and performance profiling within GPU runtime pipelines. No major bugs were addressed during this period, as the primary focus was on feature delivery and throughput gains through careful code review and targeted optimization of synchronization mechanisms.