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Antivirus is often the reason why 1C works slowly. In any antivirus, you can configure exceptions - make it so that it does not check the 1C application.
You can also exclude files and folders from antivirus scanning.
As and example, you can use the manual fo Microsoft Security Scanning:
{+}https://support.microsoft.com/en-us/windows/add-an-exclusion-to-windows-security-811816c0-4dfd-af4a-47e4-c301afe13b26+
3. PC Characteristics
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