I find the rendering of my Seam app very slow too, not sure who's fault (RichFaces? Facelets? Seam? My code? ). Especially slow is the evaluation of the "rendered= ...." conditions. RHS of each "rendered=..." expression is evaluated separately at every page load. There should be stuff like batch evaluation, or Rete-based evaluation algorithm to boost the rendering performance. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4078181#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...