Cyrus to replace UW?

[Brad]

I have a Red Hat 9 mail server running UW imap and I find that mail retrieval 
from both Windows and Linux email clients is very slow, even to the extent 
that the email client sometimes times out waiting for the imap server to 
respond.

I have heard that the Cyrus imap server is somewhat faster and was wondering 
if replacing the UW imap server with the Cyrus server would solve my problem.

Has anyone had an experience with this? I am fairly new at this so any help 
would be appreciated.

Regards,
Brad