Could you please diagnose my bottleneck?

[Asferot]

The basic idea is simple.
If your game runs slow on lowest graphical settings and does not change speed if you change them to higher setting, it means your CPU is the bottleneck.

If your game runs bad with lowest settings and gets noticeably slower on higher setting then it is GPU.

Also. When I say higher setting I mean a small change, not 10x render resolution full AA and all other settings cranked up to 11.