Teams High CPU Usage Windows 11 Fix [2026]
Quick Answer: Teams uses too much CPU because of background blur, GPU acceleration conflicts, or bloated cache. Turn off "New meeting experience" and clear %appdata%\Microsoft\Teams\Cache.
Symptoms
- Teams using 50-100% CPU
- Laptop fans loud during Teams calls
- System slows down when Teams is open
- High CPU even when idle
Root Cause
Background effects, GPU acceleration, corrupted cache, or old Teams version.
Fix
Method 1: Disable GPU Acceleration
- Teams → Settings → General
- Check "Disable GPU hardware acceleration"
Method 2: Turn Off Background Effects
- Teams → Settings → Devices
- Turn off all background effects and noise suppression
Method 3: Clear Teams Cache
Get-Process teams | Stop-Process -Force
Remove-Item "$env:APPDATA\Microsoft\Teams\Cache\*" -Recurse -Force
Method 4: Switch to New Teams
- Teams → Settings → General
- Check "Turn on new Teams"
- Restart Teams
Method 5: Check for Updates
Get-Process teams | Stop-Process -Force
# Reinstall from teams.microsoft.com/download
How Againly Helps
Againly can inspect the relevant local evidence and propose a fix plan for review.
[CTA: Try free diagnosis]
FAQ
Q: Why is Teams worse than Zoom? A: Teams uses Electron (Chromium-based) which consumes more resources.
Q: Will New Teams help? A: Yes, New Teams uses 50% less CPU than Classic Teams.
Related: Teams Constantly Reconnecting | Teams Audio Not Working