I agree with that, I think the performance is reasonable for what youre getting.
But it's very important to note that this game does not make use of the DX12 Ultimate featureset. This game has a super high poly pipeline that could be accelerated a lot by mesh shaders. VRS and Sampler Feedback (specifically Texture Space Shading as VRAM usage is already very efficient) could boost performance a lot too.
I am sure by utilizing new rendering tech, stable 60 fps would've been possible on consoles and midrange PCs. I'm not exactly sure why devs appear to not make use of that advanced featureset and that is something I wish
@Dictator would investigate.