Recommended system requirements but still lags

[pratibhaghildiyal72]

I am playing cod blops 1 and it does not even give me 20 fps.I can play cod blops 2 easily but not 1 .
Specs
i3 processor
4gb ram
Geforce gt 620m (1gb)
Still lag please help

 

[nishant.sarma94]

Did you download and install the game from STEAM?

 

[pratibhaghildiyal72]

Did you download and install the game from STEAM?

Yup