Disable the overlay interface within the launcher settings for Call of Duty.
To fix the 45 FPS lock or low performance in Call of Duty: Modern Warfare 3
If using a G-Sync or FreeSync monitor, ensure your current in-game FPS does not sit right at a sub-harmonic frequency of your refresh rate. 3. Clear and Reinstall Shader Cache cod mw3 45 fps fix
Whether you're playing in Ranked Play or just jumping into Quick Play, 45 FPS is unacceptable. This guide will take you through a comprehensive set of fixes, ranging from simple in-game settings to deep Windows optimization tricks to break that 45 FPS barrier. 1. Immediate In-Game Settings Fixes (MW3 Optimization 2026)
This is the most common culprit for locked frame rates. Turn off "VSync Gameplay" and "VSync Menu" in the in-game display settings. Disable the overlay interface within the launcher settings
Ultimate Guide to Fixing the 45 FPS Cap in Call of Duty: Modern Warfare III
Perform a "Clean Installation" of the newest NVIDIA/AMD drivers via GeForce Experience or AMD Adrenalin. NVIDIA Reflex Low Latency: Set this to On + Boost . Clear and Reinstall Shader Cache Whether you're playing
Open your Windows File Explorer and navigate to Documents\Call of Duty\players .