Cod Mw3 45 Fps Fix !!hot!! -

Many users on Reddit reported that MW3 doesn't properly utilize the GPU, leading to artificial caps. Navigate to Documents\Call of Duty\players . Open options.4.cod23.cst with Notepad or WordPad. Search for the phrase "heaps" . Change the value next to it from True to False . Save and close the file.

An accidental cap in the game's menu settings can restrict your hardware. Locate within the Display tab.

Turn V-Sync OFF for both gameplay and menus. While V-Sync prevents screen tearing, it often introduces input lag and caps frame rates to your monitor’s refresh rate.

Outdated graphics drivers are the most common software-based reason for low FPS. cod mw3 45 fps fix

Restart MW3. This forces the engine to better utilize your GPU. Fix B: Disable "Real-Time Protection" (2026 Update)

Scroll to and set it to Use the 3D application setting . Change Power Management Mode to Prefer maximum performance . For AMD Users Open AMD Software: Adrenalin Edition . Navigate to Gaming and select MW3 . Disable AMD Radeon Chill , which limits FPS to save power. Disable Radeon Enhanced Sync . 4. Reset the Player Configuration File

Windows 11 automatically lowers refresh rate on some laptops/desktops to save power. Many users on Reddit reported that MW3 doesn't

Call of Duty: Modern Warfare 3 (MW3) demands fast reflexes and fluid frame rates. Locking or dropping to 45 FPS disrupts your gameplay, aiming precision, and competitive edge. This comprehensive troubleshooting guide provides actionable solutions to eliminate the 45 FPS cap and restore smooth performance. 1. Optimize In-Game Video Settings

Use Display Driver Uninstaller (DDU) in Windows Safe Mode to completely wipe old driver files.

Use Fullscreen Exclusive rather than Borderless to ensure the OS prioritizes the game's rendering. Search for the phrase "heaps"

Turn these Off or set to Low.

Sometimes, Resizable BAR (Re-Bar) can cause performance issues in MW3. Try disabling it in your motherboard BIOS if you are still stuck at low FPS. 4. Background Processes and Windows Optimization