Open the STEAM library, then select CS: GO "properties" "set launch parameters" and paste the command data into the line: -novid - Removes the in-game screensaver -high - High priority for the game. -freq x (60, 75, 120, 144) hz - Monitor refresh rate.
-high - Starts a high priority game.
-threads <number of cores / threads> -Number of cores or threads (if your processor supports Hyper-threading [en.wikipedia.org] technology) that the game can use.
-processheap - Allows you to eliminate a bug with a sharp decrease in FPS, which appears if the game is running for a long time.
-nod3d9ex - Reduces memory consumption and speeds up switching between windows (alt + tab)
-noaafonts - Removes font smoothing.
-nojoy - Removes gamepad / joystick support.
-lv - Starts the game in the low cruelty mode.
+ exec autoexec - Runs a .cfg file with commands to increase FPS