I have a ajax request who will replace more than 80%'s content of a page. It spends a total of 7 seconds, i noticed in the console of ajax4jsf that 5 seconds is spent after the Reqest state : 3. I think richfaces/ajax4jsf parse the response and create new html content at this moment, does it? if yes, the time spent depends only the power of the client's PC? And is it better create a new second page than replace a part of the first page?