If you are playing Baldur’s Gate 3 and your CPU usage is very high, you are not alone. Many players notice their CPU running at 80%, 90%, or even 100% while playing. This can cause lag, stuttering, heating, and even crashes.
In this guide, you will learn why Baldur’s Gate 3 uses so much CPU and how to fix it with simple steps. Everything is written in easy English so you can follow along without confusion.
What Does High CPU Usage Mean?
Your CPU (processor) is the brain of your computer. It handles game logic, physics, AI, and many background tasks.
When CPU usage is high:
- Your PC may feel slow
- The game may stutter or freeze
- Your system may heat up
- Fans may become loud
Some CPU usage is normal, but constant 90–100% is not good.
Why Baldur’s Gate 3 Uses High CPU
There are many reasons why this game uses a lot of CPU power.
1. Heavy Game Engine
Baldur’s Gate 3 is a big RPG with:
- Many characters
- Complex AI
- Large maps
- Many interactions
All of this needs strong CPU processing.
2. AI Calculations
Enemies and NPCs think and react in real time. This uses CPU heavily, especially in combat.
3. Background Processes
Other apps running in the background can increase CPU load.
4. Poor Optimization (Sometimes)
Even though the game is well-made, some areas or updates may not be perfectly optimized.
5. Old or Weak CPU
If your processor is older or low-end, it will struggle more.
Is High CPU Usage Normal in Baldur’s Gate 3?
Yes, to some level.
- 50%–70% → Normal
- 70%–85% → Heavy but okay
- 90%–100% → Needs fixing
If your CPU stays near 100% all the time, you should take action.
How to Fix Baldur’s Gate 3 High CPU Usage
Now let’s go step by step with simple fixes.
1. Close Background Programs
Before starting the game:
- Close browsers
- Close unnecessary apps
- Stop downloads
How to do it:
- Press Ctrl + Shift + Esc
- Open Task Manager
- End tasks you don’t need
This can reduce CPU load quickly.
2. Lower In-Game Settings
Even though graphics mainly affect GPU, some settings impact CPU too.
Change these settings:
- Crowd density → Low
- Animation detail → Medium or Low
- Shadow quality → Medium
- Dynamic lights → Lower
Lower settings = less work for CPU.
3. Switch Between Vulkan and DirectX 11
Baldur’s Gate 3 gives you two options:
- Vulkan
- DirectX 11
Some systems perform better on one than the other.
Try this:
- Launch game with Vulkan
- If CPU usage is high → switch to DirectX 11
Test both and choose the smoother one.
4. Update Graphics Drivers
Old drivers can cause bad performance.
Steps:
- Open GPU software (NVIDIA/AMD)
- Check for updates
- Install latest version
Even though drivers focus on GPU, they can reduce CPU load too.
5. Update Windows
Sometimes system updates fix performance issues.
Steps:
- Go to Settings
- Click Update & Security
- Install updates
6. Enable High Performance Mode
Your PC may not be using full power.
Steps:
- Go to Control Panel
- Power Options
- Select High Performance
This allows your CPU to run at full speed.
7. Limit FPS (Very Important)
High FPS can increase CPU usage.
Fix:
- Turn on V-Sync
- Or set FPS limit (60 or 75)
This reduces unnecessary CPU load.
8. Disable Overlays
Overlays use extra CPU.
Turn off:
- Steam overlay
- Discord overlay
- Xbox Game Bar
Why?
They run in the background and use resources.
9. Verify Game Files
Corrupted files can cause problems.
Steps (Steam):
- Open Library
- Right-click Baldur’s Gate 3
- Properties
- Verify game files
10. Adjust CPU Priority
You can tell your PC to give more importance to the game.
Steps:
- Open Task Manager
- Find the game
- Right-click → Set Priority → High
Do not use “Realtime” as it may cause issues.
11. Disable Startup Programs
Too many startup apps slow your system.
Steps:
- Open Task Manager
- Go to Startup tab
- Disable unnecessary apps
12. Clean Your PC (Hardware Tip)
Dust can cause overheating, which slows CPU.
Do this:
- Clean fans
- Ensure airflow
- Use good cooling
High temperature = lower performance.
13. Upgrade Your CPU (If Needed)
If your CPU is very old, no setting will fully fix the issue.
Recommended:
- At least 6 cores
- Modern generation processor
This gives smoother gameplay.
Best Settings for Lower CPU Usage
Here is a simple setup you can try:
- Resolution: 1080p
- FPS Limit: 60
- Crowd Density: Low
- Shadows: Medium
- Anti-Aliasing: TAA
- V-Sync: On
This setup gives a good balance between performance and quality.
Does GPU Affect CPU Usage?
Yes, a little.
If your GPU is weak:
- CPU works harder
- This increases CPU usage
A balanced system is always better.
Laptop Users – Extra Tips
If you play on a laptop:
- Plug in charger
- Use high performance mode
- Keep laptop cool
- Use cooling pad
Laptops heat faster, so CPU usage can spike quickly.
Common Mistakes to Avoid
Many players make these mistakes:
- Running too many apps
- Playing on ultra settings
- Not updating drivers
- Ignoring overheating
Avoiding these can improve performance a lot.
When High CPU Usage Is Not a Problem
Sometimes high CPU is okay:
- During loading screens
- During big battles
- In crowded cities
If it drops after that, you don’t need to worry.
Final Thoughts
Baldur’s Gate 3 is a heavy game, and high CPU usage is common. But if your CPU stays at 90–100% all the time, you should fix it.
Start with simple steps:
- Close background apps
- Lower settings
- Limit FPS
- Update drivers
If needed, upgrade your hardware.
With the right setup, you can enjoy smooth gameplay without stress.
Quick Summary
- High CPU usage is common in Baldur’s Gate 3
- AI and large maps use a lot of power
- Lower settings and FPS can help
- Close background apps
- Update drivers and system
- Keep your PC cool
