Diablo III Performance Issues

Updated: 5 days ago
Article ID: 13930
Relevant Games:

Common Problems

  • Diablo III is laggy.
  • Diablo III is stuttering.

If you are experiencing low frame rates, slow or choppy performance, or long loading times, follow the steps for your operating system below.

Windows®

  1. Make sure you meet the Diablo® III System Requirements.
  2. Update your drivers to resolve any compatibility issues.
  3. Your settings may be too high. Lower the maximum framerate.
  4. Make sure the Blizzard Battle.net Desktop App states Game is up to date for Diablo III.
  5. If you're playing on a laptop, optimize your power management settings and graphics options for gaming.
  6. If your computer locks up and becomes unresponsive, check for overheating components.
  7. Run the repair tool to repair any damaged game files.
  8. Try closing background applications to resolve any software conflicts.
  9. Run ScanDisk and defragment your hard drive to try to repair any bad sectors.
    Note: Do not defragment a Solid State Drive (SSD).
  10. Missing or corrupted Windows® system files may cause this error. Use System File Checker to repair and replace system files.
  11. If the problem persists, uninstall and reinstall the game.

Mac®

  1. Make sure you meet the Diablo III System Requirements.
  2. Run Software Update to check for pending updates to software, drivers, and firmware.
  3. Make sure the Blizzard Battle.net Desktop App states Game is up to date for Diablo III.
  4. Your settings may be too high. Lower the maximum framerate.
  5. If your computer locks up and becomes unresponsive, check for overheating components.
  6. Run the repair tool to repair any damaged game files.
  7. Some MacBook Pro models have two separate graphics cards, which may require manual setup. Make sure your MacBook Pro is set to higher performance or automatic graphics switching is disabled. (15-inch, late 2008 | 17-inch, early 2009 | 15- and 17-inch, mid-2009 | 15-inch, mid-2010 and later | 17-inch, mid-2010 and later).
  8. Reset Folder and File Permissions to make sure there is no conflict between the latest OS update and your permissions.
  9. Try closing background applications to resolve any software conflicts.
  10. Reset the System Management Controller (SMC) to reset the voltage to your graphics card.
  11. Repair Disk Permissions to resolve any permission conflicts with logon modules.
  12. The NVRAM stores settings related to your computer's devices and settings, such as your volume, display resolution, and startup disk. Try resetting your NVRAM.
  13. Missing system files may cause encryption failures. Download the latest Combo Update for your specific OS X version to restore missing files.
  14. Run the Apple Hardware Test to make sure there are no physical problems with your hard drive.
  15. If the problem persists, uninstall and reinstall the game.

Tried everything here?

If you have tried all of these steps and still require assistance, please visit our Technical Support Forum or contact us.