This is the most common culprit for locked frame rates. Turn off "VSync Gameplay" and "VSync Menu" in the in-game display settings.
Open (for single-player) or config_mp.cfg (for multiplayer) with Notepad. cod mw3 45 fps fix
Wait completely for the installation progress bar to hit 100% before entering a match. Edit the Players Config File Close the game entirely. This is the most common culprit for locked frame rates
: In-game settings often default to VSync, which can lock your frame rate to a fraction of your monitor's refresh rate. Turning this Off in the video options is the most common fix for immediate frame rate increases. cod mw3 45 fps fix