[Zope] Zope behind a firewall.

Hi there, I have developed a Zope application wich when it is run in our internal net behaves like a dream. It also runs like a dream on the outside ( on the internet ). However when the Zope application is run behind our firewall ( Borderware 6.1.1 ) it is very,very slow. I'm running Zope on a NT box and have done the following in the start.bat file. And running Zope 2.3.0. "C:\Program\WebSite\bin\python.exe" "C:\Program\WebSite\z2.py" -D -f - -p - -w80 "$@" %1 %2 %3 %4 %5 %6 %7 %8 %9 What do I have to do to make Zope behave with the same speed using the firewall ?? With kind regards Fred Rubinstein