Cod Mw3 45 Fps Fix Guide
Mismatched refresh rates within the game settings frequently cause the 45 FPS lock.
Use Display Driver Uninstaller (DDU) in Windows Safe Mode to completely wipe old driver files.
: Turn VSync OFF in both gameplay and menu settings to remove potential refresh rate syncing issues. 5. Third-Party Software Interference cod mw3 45 fps fix
Corrupt cache files can permanently bottleneck your GPU performance at a specific frame rate. Resetting the shaders forces the game to rebuild these files cleanly. Launch MW3 and open the settings. Switch to the Display tab. Scroll down and click Restart Shader Optimization .
Disable this setting immediately. V-Sync can often cause the engine to default to a lower common denominator, such as 30 or 45 FPS, if the target refresh rate isn't perfectly met. Summary of Best Practices Mismatched refresh rates within the game settings frequently
Ensure this matches your monitor's maximum capability (e.g., 144Hz or 240Hz). Sometimes this defaults to a lower value after an update.
Ensure RivaTuner Statistics Server (RTSS) does not have a manual framerate limit set to 45 for the global or cod.exe profile. Launch MW3 and open the settings
Third-party applications with screen overlays can accidentally clamp game engines to specific fractional frame rates like 45 FPS.
Open the Nvidia Control Panel , go to Manage 3D Settings , and ensure Max Frame Rate is set to "Off" or your desired limit.
: Especially on laptops, the game may default to integrated graphics instead of your dedicated Nvidia or AMD card.
