(2023), players have found success with several technical tweaks and setting adjustments. Common Fixes for 45 FPS Caps and Low Performance
If changing the settings didn't help, the issue might be how the game interacts with your hardware. Fix A: The Config File Tweak (Fixes GPU Usage)
Right-click the executable, select , then the Compatibility tab.
Does this 45 FPS drop happen or after a few minutes of playing ?
In MW3 , mode sometimes misbehaves, hard-capping FPS to half your refresh rate (e.g., 90Hz monitor → 45 FPS lock). cod mw3 45 fps fix
The 45 FPS cap in Modern Warfare 3 can be frustrating, but it's not a permanent limitation. By trying out the methods outlined in this article, players should be able to fix the issue and enjoy a smoother gaming experience. Remember to always keep your graphics drivers up to date and adjust your graphics settings to optimize performance. If you're still experiencing issues, consider seeking help from the game's community or support team.
Third-party applications with screen overlays can accidentally clamp game engines to specific fractional frame rates like 45 FPS.
If you have an NVIDIA GPU, set to "Balanced" or "Performance."
External GPU software settings can override your in-game configurations, resulting in unexpected performance throttles. NVIDIA Control Panel Adjustments Right-click your desktop and open . Navigate to Manage 3D Settings > Program Settings . Select Call of Duty: Modern Warfare 3 from the list. Locate Max Frame Rate and ensure it is turned Off . Set Power Management Mode to Prefer Maximum Performance . Set Vertical Sync to Off . AMD Software (Adrenalin Edition) Adjustments Open AMD Software . Go to Gaming > Games > Modern Warfare 3 . (2023), players have found success with several technical
: Some players find that toggling this Windows setting (found under System > Display > Graphics) can release stuck frame caps, though a PC restart is required Resizable Bar (ReBar) Conflict : In the newer MW3 (2023), some users report that disabling ReBar
This is the #1 culprit. MW3 has an "Eco Mode" that aggressively caps your frame rate to save power. Eco Mode Preset and set it to Menu Game Custom Frame Rate is set higher than 60. 2. Disable VSync & Check "Sync Every Frame"
Few things are more frustrating than jumping into a high-stakes match of Call of Duty: Modern Warfare 3 (MW3) only to find your frame rate locked at an unplayable 45 FPS. This specific frame rate cap is a known issue that usually stems from mismatched refresh rates, corrupted configuration files, or aggressive power-saving settings rather than weak hardware.
If any line already exists with a numeric value like "45", replace it with "0". Does this 45 FPS drop happen or after
Change your settings from Windowed or Borderless Windowed to Fullscreen Exclusive . Borderless modes often force the game to sync with your desktop refresh rate or introduce Windows-level caps.
Right-click the file and select (or move it to your desktop as a backup).
MW3 features power-saving options. Set Eco Mode Preset to Off or Custom to ensure your hardware runs at maximum capacity. 2. Modify Graphics Card Control Panels