if you mean a faster rate at downloading esf 1.2.3b if you go to the files link on the main page and go to Servmcs site to download. Its a french site but this should be the direct link to the file
ESF 1.2.3b . Hopefully that works, otherwise go to the site, and click on "Télécharger" on the left hand side and do a search for 'ESF'. Find the version you want from the search results and download. Not sure what rate you might get but i was getting round about 500 kB/s.
Hope That Helps