Slow Loading in Roundcube

[Tobias Brunner]

Hi,

Since upgrading to Kolab 3.1 roundcube is sometimes very slow in loading 
content, f.e. when clicking on "Calendar" it takes a long time to load 
the calendar content (several seconds, up to minutes). There aren't that 
many items on the calendar, maybe one entry per day or less. I even 
completely reinstalled roundcube (including the database).

Looking at the /var/log/mail.log logfile I see sometimes many (very 
many!) messages like this one:

imap[2944]: starttls: TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits 
new) no authentication

I have a feeling that this could have something to do with the slowness, 
but could not track it down thoroughly.

Any help to debug this performance issues is appreciated.

Cheers,
Tobias