Sometimes external software imposes a cap that overrides your in-game settings.
Classic MW3 has built-in limits in its configuration files that sometimes default to low values like 40 or 45 FPS.
For the , look for options.4.COD23 in your Documents folder and adjust internal frame rate limits there. 3. Check GPU Driver Settings cod mw3 45 fps fix
How to Fix the 45 FPS Cap in CoD: MW3 Getting stuck at exactly 45 FPS in (MW3) is a frustrating but common issue that often stems from hidden software caps or outdated system optimizations. Whether you're playing the classic 2011 version or the modern reboot, here is how to break past the 45 FPS limit and restore smooth gameplay. 1. Disable "Sync Every Frame" (VSync)
If you are on a laptop, check the GeForce Experience settings. Whisper Mode is known to cap games at 40 or 45 FPS to keep fans quiet. Sometimes external software imposes a cap that overrides
Ensure Radeon Chill or Frame Rate Target Control is disabled in the AMD Software . 4. Address Windows 10/11 Optimizations
Disabling this often immediately unlocks your frame rate, though it may introduce some screen tearing. 2. Edit the Config File (For Classic MW3) you can create it.
Set the value to your monitor’s refresh rate (e.g., seta com_maxfps "144" ) or 0 for unlimited.
Open the Nvidia Control Panel , go to Manage 3D Settings , and ensure Max Frame Rate is set to "Off" or your desired limit.
Search for the line seta com_maxfps . If it’s not there, you can create it.