Developed a timer-based Metal rendering optimization for macOS applications within the facebook/igl repository, focusing on improving efficiency for Metal rendering when apps are not frontmost. The approach introduced timer-driven rendering using an external display link, which reduces unnecessary GPU workload for background or non-visible applications. This feature established a foundation for broader performance and energy efficiency improvements across macOS targets. The work involved implementing the feature in Objective-C++ with a strong emphasis on graphics programming and Metal API integration. The code was delivered through peer review and integration processes, demonstrating attention to maintainability and collaborative development practices within the project.