Cod Mw3 45 Fps Fix -

Call of Duty: Modern Warfare 3 (2011)

For players running on modern versions of Windows, a frustrating performance cap—often hovering around 45 to 85 FPS —can occur due to compatibility issues with Windows 10 and 11. This "bug" stems from engine optimizations originally designed for Windows 7 that now inadvertently cripple performance on newer operating systems. Primary Fixes for the 45 FPS Cap

Hardware Acceleration

: Disable hardware acceleration in background apps like Discord, Chrome, or Spotify, as these compete for GPU resources. cod mw3 45 fps fix

  • A common culprit for specific FPS caps is the "Eco Mode" setting introduced in recent updates. Call of Duty: Modern Warfare 3 (2011) For

    1. Game’s internal framerate limiter incorrectly engages (despite seta com_maxfps 0).
    2. Windows DWM / Fullscreen Optimizations forcing V-Sync-like half refresh (45 on 90Hz? 45 on 144Hz?).
    3. Raw input vs. DirectInput timing mismatches in IW5 engine.
    4. Background CPU polling (USB devices, RGB software) interfering with R_IssueRenderCommands.

    Open config_mp.cfg in Notepad (or other plain-text editor). A common culprit for specific FPS caps is

    (Replace 144 with your monitor’s refresh rate)

  • Apply Settings. The screen may flicker. The FPS should immediately jump to normal levels.