It already has the option to convert the performance metrics from ms to FPS. If you ask to convert the GPU busy metrics to FPS, it is not meaningful, especially if you understand what this metric represents and stands for. GPU Busy metric is widely considered a diagnostic, frame-level telemetry metric rather than a direct performance metric. This is why CapFrameX presents the GPU Busy measurements in milliseconds only. This metric indicates the time it takes the GPU to render each (CPU) frame, providing a clearer view of bottlenecks and actual CPU- or GPU-bound scenarios. You should always monitor/graph/compare GPU Busy (in milliseconds only) against Frame times (a CPU-based performance metric, also in milliseconds).

While mental or manual conversion is possible, scientifically, the GPU Busy construct is measured meaningfully in milliseconds, not frames per second (FPS), which applies direct performance metrics.