Understood, thank you for your answer.
YYC version has given me not much of a difference, but it's ok, I was aware of the GPU requirement.
Still, the engine is great, and looking forward to use it
That is odd as YYC is many magnitudes faster.
Without a dedicated GPU there are common compromises that we see in many games and on different platforms. Like running 30 FPS at a lower resolution. Going for 60 FPS at 1080p or high simply needs more power for each pixel, especially at the current sample rate used by the PBR shaders.