(For AMD/Intel GPUs with broken OpenGL fallbacks) Download dxvk-2.x.tar.gz → place d3d9.dll + dxgi.dll next to .exe . This replaces DirectX 9 calls with Vulkan, often removing 45 FPS lock.
Open Discord settings, go to Game Overlay , and toggle it off to eliminate background rendering conflicts. Hardware and Windows Optimizations cod mw3 45 fps fix
If the in-game menus didn't work, the game's config file ( options.4.cod23.cst ) has likely corrupted the renderer worker count—a known bug in Season 3+ updates. (For AMD/Intel GPUs with broken OpenGL fallbacks) Download
Go to Windows Settings > System > Display > Graphics. Click Default graphics settings and toggle Hardware-accelerated GPU scheduling to On . Restart your PC. Hardware and Windows Optimizations If the in-game menus
: Turn off the in-game overlay in Discord's user settings.
Fortunately, there are several methods to bypass or adjust the 45 FPS cap in Call of Duty: Modern Warfare 3: