anonymous wrote : Are you able to post some actual code that demonstrates these performance issues: (beans, facelets etc)? I posted some code before https://javaserverfaces.dev.java.net/issues/show_bug.cgi?id=625 anonymous wrote : In addition to all the EL parsing, reflection, etc. the EL calls will probably be subject to several layers of interception. Do these show up in your timings? I haven't really investigated impact of interseption. I my past experience of rendering tables without Seam it was slow too. anonymous wrote : I know you've run a profiler on the session and currently all fingers point to EL, but another thing to consider is that there are certain cases in IE where the browser itself is incredibly slow at rendering tabular data. I've seen it too, but I'm not talking here about client side. I'm clocking renderding phase on server side. (JSF Phase listener displays timing of all JSF phases on server side). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4085097#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...