在匿名网站上启用“Windows”身份验证时，性能是否会受到影响？

I've been having performance issues with a high traffic ASP.NET 2.0 site running on Windows 2000. While editing the web.config file I noticed that the authentication mode was set to 'Windows'. I changed it to 'None'. The only users this site has are anonymous and it gets 25,000+ page views at day. Could this have been a caused performance issues?I've been having performance issues with a high