God of War II HD [NPEA00256]

Questions about this one.

1) Disk states to support native 1080p (1980x1080), but in 1080p there is constant flickering and wrong display size in Vulkan\GL. In DX12 logos run ok, but freezes after.

2) Core i7-4790 (HT), GTX980.  CPU is always <= 50% as if it doesn't use HT. Why?
GPU <=25%. Given this, frame rate drops to 40+, average 50. What is the bottleneck?

I'm new here. Do developers read this?

1. Most PS3 games that claim that they support 1080p use a type of upscaling, and the emulator doesn't handle well this upscaling. You have to do it with Resolution Scale. DirectX 12 isn't so developed as Vulkan and OpenGL does.

2. About GPU usage, it's normal, because it's rendering PS3 graphics (2006). The bottleneck here is the CPU, not the GPU, because emulation relies on CPU.