Low FPS with a fair PC

[segevush]

DXDIAG:

 

Operating System: Windows 7 Professional 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.160121-1718)
System Manufacturer: Hewlett-Packard
          Processor: Intel(R) Core(TM) i7-4770S CPU @ 3.10GHz (8 CPUs), ~3.1GHz
             Memory: 8192MB RAM
Available OS Memory: 8106MB RAM
          Page File: 5695MB used, 10513MB available
Graphic card : AMD Radeon (TM) HD 7650A Graphics

 

Any idea why the PC holds a constant 25-30FPS whilst having the *lowest* graphic options in-game? (everything on 1)