Slow public web site

Hi, I have been doing some research on wikis and looking at www.xwiki.org <http://www.xwiki.org/> throughout the week and observed slow response times pretty much consistently, compared to other sites on the internet. http://www.xwiki.org/xwiki/bin/view/Main/WebHome <http://www.xwiki.org/xwiki/bin/view/Main/WebHome> has taken up to 15 seconds to display. What can explain this? Thanks, Olivier PS: http://jira.xwiki.org/ <http://jira.xwiki.org/> is down. <http://www.optimumgroup.com> Olivier Gourment Architecte technologique Technology Architect OPTIMUM INFORMATIQUE INC. Téléphone Télécopieur Courriel Web : (514) 288-1661 poste 515 : (514) 288-8152 : <mailto:ogourment@Optimuminformatique.com> ogourment(a)Optimuminformatique.com : <http://www.optimuminformatique.com> www.optimuminformatique.com