We go into the folder with the game, then into the folder players and open in notepad config.cfg and config_mp.cfg
We find these lines there:
seta r_multiGpu (here we put 0 if you have one video card) the default is 1
seta r_multithreaded_device (here we put 1 if you have a multi-core percentage) the default is 0
For those who don’t want to mess around,config.cfg flooded.