Cod Mw3 45 Fps Fix Guide

Modern features like Resizable BAR (Nvidia) or Smart Access Memory (AMD) can sometimes cause erratic FPS drops or locks in the MW3 engine.

On modern PCs (Windows 10/11, high refresh rate monitors), Call of Duty: Modern Warfare 3 (2011) sometimes locks itself to (or stutters between 45–60), especially in: cod mw3 45 fps fix

Open config_mp.cfg in Notepad (or other plain-text editor). Modern features like Resizable BAR (Nvidia) or Smart

Open the Nvidia Control Panel , go to Manage 3D Settings , and ensure Max Frame Rate is set to "Off" or your desired limit. high refresh rate monitors)

Windows 11 automatically lowers refresh rate on some laptops/desktops to save power.