if  your games are lagging but your all requirements are complete like ram GPU etc. but your proccesor is giving low ghz then follow these steps

1.click here to get throttle stop 
2.extract the zip file
3.run throttle stop and it will show the following
    'setting'
     clock modulation> check it to highest point
      chipset clock modulation> check it to the highest piont
     set multiplier> check it to the highest piont
4. save and minimize it 


    when you restart you pc repeat the same steps