After installing Avast, my computer started running slower / games are lagging. How can I optimize its performance or configure it so it doesn’t interfere?

Xolvie
Xolvie Resolution Specialist November 05, 4:39 pm

If your PC slowed down or games lag after installing Avast, it’s likely due to constant background scans, real-time shields, and automatic updates. Here’s how to fix it:

Disable unused modules: Go to Avast → Menu → Settings → Protection → Core Shields and turn off features you don’t need (e.g., Mail Shield).

Enable “Do Not Disturb” mode: Menu → Settings → General → Notifications → activate Silent Mode to stop interruptions while gaming or working.

Delay startup: Menu → Settings → Troubleshooting → check Delay Avast startup after system load to make Windows boot faster.

Set scan times manually: Run deep scans only during idle hours.

Update software and drivers: Outdated versions can cause lag.

Clean startup apps: Remove unnecessary ones to lower CPU load.

Repair or reinstall Avast if performance issues remain.

If your PC is older, use Game Mode or disable real-time shields temporarily (with caution). If Avast still slows your system, report it on Xolvie to help improve the product.

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