Jaap Vosser wrote a very interesting and explanatory article on the XlstListViewWebPart performance:
How the XsltListViewWebPart in SharePoint 2010 can be a real performance killer
It gives us good reasons to pay more attention to the use of this web part, how it affects the page’s performance when you have more than a web front-end.
Have a good reading!!!
See you,
Amadeu.
Image may be NSFW.
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