Worked on enhancing OpenXR time management within the ValveSoftware/Proton repository, focusing on improving frame timing accuracy for XR applications. Developed and integrated features in C and C++ to enable precise conversion between Win32 performance counter time and XR time formats, addressing time drift issues between QPC and CLOCK_MONOTONIC. This involved API development and system programming to reduce XR jitter and improve synchronization across Windows and OpenXR paths. The work laid a foundation for future timing optimizations, resulting in smoother XR experiences and reducing the need for post-release bug investigations by improving reliability in Proton’s OpenXR runtime timing mechanisms.