Why Is My FPS Suddenly So Low on All Games?

Ever jumped into your favorite game and suddenly noticed the action turning sluggish or choppy? One minute, everything’s buttery smooth, and the next, your FPS drops like a rock.

Don’t panic you are not alone! Sudden FPS drops can happen to anyone, even on powerful rigs. The good news? You can easily diagnose and fix them once you know what’s going on. 👇

Test Your PC’s Gaming Performance

Stop guessing your frame rate! Use our free FPS Calculator and see how powerful your setup really is…

FPS Calculator — 2025/26 Gaming Tool
Pro Tip: Pair DDR5 with top-tier GPUs for max FPS and ray tracing dominance. Boost with DLSS/FSR!
All data is client-side, saved via localStorage.

So let’s break down Why Is My FPS So Low All of a Sudden, how to fix it fast, and what tools help you monitor performance in real-time.

 What Does FPS Drop Mean?

FPS stands for frames per second, the number of images your computer displays every second. A higher FPS means smoother visuals and faster reactions, especially in competitive games like Valorant, Apex Legends, or Call of Duty.

  • 60 FPS → Smooth, ideal for casual play
  • 120+ FPS → Perfect for esports-level performance
  • 30 FPS or below → Noticeable lag and stutter

When FPS suddenly drops across all games, it’s usually a system-wide issue—something affecting your hardware, software, or background performance.

 Common Reasons Why FPS Suddenly Drops in All Games

Most common reason behind this issue are:

 1. Overheating CPU or GPU

Your computer’s processor and graphics card can throttle (slow down) if they overheat. This protects your hardware but kills FPS.

How to check:
Use tools like MSI Afterburner, HWMonitor, or GPU-Z to watch temperatures.

  • Ideal GPU temp: 60–80°C
  • Ideal CPU temp: 50–70°C

Fix:

  • Clean dust from fans and vents
  • Reapply thermal paste if temps stay high
  • Ensure good airflow inside your case

 2. Background Apps Eating Resources

Background tasks like Discord, Chrome tabs, or Windows updates can silently consume CPU and RAM.

Fix it fast:

  • Open Task Manager (Ctrl + Shift + Esc)
  • Sort by “CPU” or “Memory” usage
  • End unnecessary apps or processes

Pro tip: Disable startup apps that launch automatically with Windows.

 3. Outdated or Buggy GPU Drivers

If you  are not updating your GPU drivers—or if a recent update went wrong—it can lead to major performance issues.

How to fix:

  1. Download the latest drivers from your GPU’s official site:
    • NVIDIA Drivers
    • AMD Drivers
    • Intel Graphics
  2. Use “Clean Install” mode for a fresh setup.

4. Windows or Game Updates Gone Wrong

Sometimes, updates change settings or cause compatibility issues.

Fix:

  • Roll back recent Windows or driver updates
  • Verify game files (via Steam or Epic Games Launcher)
  • Keep your OS and DirectX fully updated

5. Power Settings & Battery Mode

If you’re gaming on a laptop, battery saver mode can drastically reduce GPU power.

Fix:

  • Go to Control Panel → Power Options
  • Select High Performance mode
  • For laptops, plug in the charger while gaming

6. Thermal Throttling or Dust Buildup

Even if your fans work, too much dust can block airflow. As heat builds up, your CPU/GPU lowers its clock speed—causing FPS drops.

Fix:

  • Open your case or laptop panel carefully
  • Use compressed air to clean dust
  • Keep the system in a cool environment

 7. Network or Sync Issues (Online Games)

Not every lag spike is about FPS. High latency or ping can make it feel like FPS drops, especially in online games.

Fix:

  • Run a ping test 
  • Start again your router
  • Use a wired connection instead of Wi-Fi

 8. Hardware Bottleneck or Aging Components

If FPS is low in all games, your components might be struggling with newer titles.

Fix:

  • Check your CPU/GPU usage with MSI Afterburner
  • If usage is maxed out (90–100%) often, consider an upgrade
  • Add more RAM (16GB+ recommended) for modern games

“If you’re asking yourself ‘Why is my FPS suddenly low in every game?’ it’s usually due to overheating, outdated drivers, or background apps. Here’s a quick breakdown.”

 How to Fix Low FPS in All Games (Step-by-Step)

Here’s a simple order to troubleshoot and fix FPS drops effectively:

Step 1 : Check Temps & Usage

Open MSI Afterburner or Task Manager to monitor CPU/GPU load and temperature in real-time.
If temperatures are high, improve cooling first.

Step 2 : Update GPU & Windows Drivers

 Obsolete drivers are the #1 reasons of FPS instability. Always get them directly from official sites—avoid third-party installers.

Step 3 : Disable Background Tasks

Press Ctrl + Shift + Esc → Task Manager → End unnecessary apps.
You can also turn off background recording in Xbox Game Bar or Discord overlays.

Step 4 : Optimize Game Settings

Small tweaks can make a huge difference:

  • Lower resolution from 1440p → 1080p
  • Turn off motion blur and V-Sync
  • Set shadows and textures to “Medium”
  • Enable DLSS or FSR if available

Step 5 : Switch to High-Performance Mode

Windows Settings → System → Power & Battery → Power Mode → Best Performance
Also, in NVIDIA Control Panel → “Manage 3D Settings” → set “Power Management” to “Prefer Maximum Performance.”

Step 6 : Clean PC & Improve Cooling

Every 3–6 months, clean your PC or laptop fans and vents. If your thermal paste is more than two years old, replace it.

Step 7 : Scan for Malware

Malware or crypto miners can silently hog resources.

Scan your system through Window  defender or you can also ues  Malwarebytes.

 Advanced Tips to Boost FPS

  • Undervolt or Overclock (Carefully): Adjusting voltage or clocks can improve stability.
  • Disable Game Overlays: Turn off Steam, GeForce Experience, or Discord overlays.
  • Use an SSD: Load games faster and reduce stutters.
  • Reinstall Windows (last resort): Fixes corrupted system files affecting performance.

 Tools to Monitor & Test FPS

ToolUsePlatform
MSI AfterburnerMonitors temps, FPS, usageWindows
FrapsSimple FPS counterWindows
Steam Overlay (Shift+Tab)Built-in FPS displayWindows/Linux
NVIDIA GeForce ExperienceFPS + optimizationWindows
Windows Game Bar (Win+G)FPS & performance monitorWindows 10/11

Use your site’s FPS Calculator Tool to estimate how your CPU and GPU combo should perform in various games and compare with your real results!

 When to Consider a Hardware Upgrade

If you’ve tried everything and FPS still drops in every game, your hardware might be aging.

  • GPU older than 4 years? Time for an upgrade.
  • CPU constantly maxed out? Check bottleneck ratio.
  • Still on HDD? Move games to SSD for smoother loads.

Pro tip: Pair a balanced CPU & GPU to avoid bottlenecks. Use your FPS Calculator to check ideal combinations before upgrading.

 Conclusion

Whether it’s heat, drivers, background apps, or power settings each small tweak adds up to smoother, faster gameplay.

Sudden FPS drops can be annoying, but the good news is,they are  usually easy to fix once you know what’s causing them.So next time your frames start tanking, grab your tools, monitor temps, clean up your system, and optimize smartly.

Your gaming rig will thank you with steady, buttery-smooth FPS.And remember you can always test your system’s performance instantly using our free FPS Calculator Tool!

Frequently Ask Question

It often occurs when your system overheats, your drivers are outdated, or background apps are using up too many resources.Cleaning your PC and updating drivers often fixes it.

Yes! When your CPU or GPU overheats, it throttles performance to cool down, which instantly lowers FPS.

 Background apps, power settings, or software bugs can cause drops even on high-end PCs. Check temps and drivers first.

 If you’ve tried everything else, yes. A clean Windows install removes corrupted files or malware, slowing down performance.

 Use built-in FPS counters like the Steam Overlay, or try performance tools such as MSI Afterburner, NVIDIA GeForce Experience, or the Windows Game Bar.