Maybe I’m missing something, but it didn’t look like the GPU was engaging at all. 15fps? That doesn’t seem right. Given that the overlay had a battery percentage reading, and the GPU readings were all zero, I’m guessing this was on a laptop, and it didn’t switch from using the iGPU to using the GPU.
Either that, or NVK has a lot of work to do, and that doesn’t track with recent news about its progress.
OP, is this your test? Can you shed light on the results?