Cod Mw3 45 Fps Fix May 2026

Before we fix the problem, you need to understand why 45 is the magic number. Typically, 45 FPS occurs due to the following technical reasons:

Let’s fix it.

45 FPS is almost always half of 90Hz or half of 90 FPS limit.
MW3 has a known bug where: cod mw3 45 fps fix

Many players experience a hard lock at 45 FPS or unusually low frame rates in Modern Warfare III, even on hardware capable of higher performance. This issue is rarely due to a single cause but stems from a combination of rendering settings, driver behavior, Windows power management, and game file corruption. This report provides a tiered troubleshooting guide.

If the game thinks your monitor is running at 90Hz (instead of 144Hz or 240Hz), it will cap FPS to half that rate. Sometimes Windows Update resets your refresh rate. Before we fix the problem, you need to

To ensure the driver does not override your in-game settings:

There are few things more frustrating in competitive gaming than loading into a match of Modern Warfare 3, only to find your high-refresh-rate monitor feels like a PowerPoint presentation. You check your FPS counter. It doesn’t say 15. It doesn’t say 30. It says a steady, stubborn, unshakable 45 FPS. Let’s fix it

If you are experiencing a hard lock at 45 frames per second (or sometimes 30/40 FPS), you are not alone. This specific issue has plagued the Call of Duty engine since the Warzone 1.0 days. Unlike general FPS drops (which fluctuate), a locked 45 FPS indicates a specific software conflict, a rendering bottleneck, or a deliberate (but bugged) game setting.

This article will walk you through every scientific fix for the "MW3 45 FPS cap," from simple toggles in the settings menu to advanced config file edits.

If you’re in a hurry, these solve 90% of cases:

Still at 45 FPS? Read on.