Call of Duty MW3 Low FPS: Boost Performance

If you are experiencing performance-related problems in COD MW3, such as low FPS, you are in the right place. I tested all of the fixes below, and they improved my game greatly.


I get how maddening it is to experience low FPS while you are playing Call of Duty MW3.e. Fortunately, I’ve been there a few times, and I kept going back to the problem every time I fixed it for the sake of research. That’s why I discovered a variety of solutions which will most likely solve the performance issues.

Table of Contents:

  1. Why is Call of Duty MW3 experiencing low FPS?
  2. How to fix COD MW3 Low FPS issue?

Why is Call of Duty MW3 experiencing low FPS?

The main reason why I encounter low FPS and performance-related issues is because of outdated graphics drivers and Windows services and processes. However, there are several other reasons why you might be experiencing low FPS, and understanding them is the first step to improving your gameplay.

  • System Specifications: If your PC doesn’t meet the MW3 minimum system requirements, you’re probably going to have a bad time with FPS.
  • High Graphics Settings: If you’ve got all the in-game settings turned up to maximum, your system might struggle, reducing your FPS.
  • Background Applications: Other programs running in the background can hog valuable system resources, causing FPS drops.
  • Thermal Throttling: Overheating can cause your hardware to throttle its performance, causing the low FPS problem in MW3.
  • Unstable Internet Connection: Although it primarily affects lag, a bad internet connection can sometimes also contribute to low FPS.

How to fix COD MW3 Low FPS issue?

To fix COD MW3 issue make sure that there are no pending Windows Updates available and that your graphics drivers are updated. However, if you don’t know how to verify this or if this doesn’t work for you, try the following quick fixes, and then move on to more elaborate software and hardware solutions. I recommend you to try all of them.


  1. Windows Updates:
    • I make sure that my Windows is fully updated because it brings many fixes with it, and sometimes it even optimizes your drivers and prevents problems such as the MW3 Low FPS issue.MW3 Windows Update
  2. Background Apps:
  3. Internet Connection:
    • I also check that my internet connection is stable and fast because there are times when the MW3 low FPS problem could also be caused by latency.
  4. Malware Scan:
    • Just to be sure, I run a quick malware scan. I don’t want anything messing with my game.MW3 Virus & Threat Protection

Software Solutions

The following software solutions fixed the performance related problem for me.

  • In-game Settings Tweaks:
    • I dive into the game settings and dial down the texture and shadow quality. It may not look as flashy, but the MW3 FPS boost is totally worth it.
  • Graphics Driver Update:
  • Modify Game Priority via Task Manager:
    • This is a simple one. I go to the Task Manager, find the game’s process, and set its priority to High. This helps a PC focus on the game more.
  • Turn off Full-Screen Optimizations:
    • This setting is sneaky. It’s hidden under compatibility settings in the game’s properties. Turning this off gives me an instant FPS lift.Modern Warfare 3 Compatibility
  • Opt for DirectX 11:
    • Sometimes using DirectX 11 instead of 12 seems to make things run smoother for me. Your mileage may vary, but it’s worth a shot. Additionally consider updating DirectX or repairing it.

Hardware Solutions

I wouldn’t recommend trying the hardware solutions if your system matches the previous requirements.

  • Graphics Card Upgrade:
    • If the card’s old, it’s not going to give me the FPS I need. So I make room in my budget for a newer, more powerful graphics card.
  • CPU Upgrade:
    • The processor is the brain of the operation. A faster CPU = a smoother game. But remember, it’s got to be compatible with your motherboard.
  • New Motherboard:
    • A new CPU often calls for a new motherboard. Upgrading this lets me add even more powerful components later on.
  • Higher-Speed RAM:
    • RAM speed can be a game-changer. I made sure to get the fastest RAM compatible with my motherboard.
  • Power Supply Unit (PSU) Upgrade:
    • This is the unsung hero. An up-to-date PSU ensures that all my shiny new components get the juice they need without causing any bottlenecks.


I put this guide together because I’ve felt the pain of having performance-related issues. I’ve tried these solutions myself, and they worked quickly and efficiently. Keep in mind that if you encounter the MW3 Low FPS problem in the future, the best thing you can do is to update your graphics and other game-related drivers. It’s my hope that these steps get you back in the game and running as smoothly as possible.

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