[Zope] Help: Zope is extremely slow

[Daniel Rusch]

Our user base has grown significantly in the last few weeks.
Unfortunately at hours of peak usage Zope crawls to a halt and won't
even serve up pages. 

we have NUMBER_OF_THREADS=4

would increasing this help? Actually when we I check the processes (with
ps -fe | grep py) I only see two the root thread and the thread that
runs as nobody?

Anybody have any suggests to help the performance of the site?

Dan