New answers tagged performance
Tools which you can make use of Google page speed Google page load [it's a add-on] Fiddler is the best Make sure Compression is enabled. Check minification is done for static .js,.css files Caching is implemented in SharePoint
The answers so far have a lot of merit but to answer "why" we can only speculate. Here's how you can find out: install Fiddler on your client - http://www.telerik.com/fiddler record two traces, one while logged in and one while browsing anonymously. compare the traces: a.) You might see more files in the longer load than in the slower. b.) Use ...
You might be having some files in draft mode which has some script that is slowing the page down or you are referring a resource files from other site which is not available.
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