i think the game does not use my gpu

[SanBok]

well when i play normally i get a good fps 
when use Frezzin enb it drops to 20 30
when i check the usage it only used 3% i don't what wrong with it
here is this if its gon' be helpful
https://pastebin.mtasa.com/5825017619

[Nico834]

The game uses your video card, but much more the processor, because it is a very old game, and we cannot fix this with Multi Theft Auto either, because the game is only available in x86 (32-bit) architecture, and the source code is also closed.

I looked through the submitted log, which shows that the checksums of some files in your installation of Grand Theft Auto: San Andreas do not match the original ones. This means that these files have been modified and may cause unexpected errors during gameplay. You may have to restore these files to their original state using Steam.

Best regards,
Nico.