Some users have reported that antivirus software like Norton, Kaspersky, ESET NOD, and Avast, is slowing down the Nox emulator. To find out if this is the case with yours, disable real-time protection in your antivirus software and see if it affects the emulator. If this resolves the issue, consider adding Nox Player to your firewall as an exclusion or exception – make sure you re-enable your antivirus after running the test.