There is a known issue where you may experience poor performance when opening a WebDav folder, copying files to or from a WebDav folder, or changing from one folder to another on the WebDav folder. This can be caused because when WebClient issues a WebDAV command it checks for a web proxy server. If you have Auto-Proxy detection enabled and there isn’t a proxy server in the environment between the client and WebDAV resource, WebClient waits for the timeout of Auto-Proxy detection. Command completion therefore will take longer due to the wait for the Auto-Proxy detection timeout.