our 4.5.6 email server crashed, and we went 5.0.8 for our rebuild, and ive noticed some awful increases in certain load times.
it is nearly impossible to create a new user via the administrator interface, it takes 15 seconds for the text that i type to show up in that window.
moving files from an inbox to a folder and other operations have become nearly unusable, while other operations have increased considerably in speed.

is there anyway to fix these or anyway to figure out whats causing them?

ive looked for /opt/zimbra/log/zimbrastats.csv but that file doesnt appear to exist.

server is a dual 2.0ghz xeon with 2GB ram
and 3 146 10k rpm SCSI hds in raid 5,
running suse 10.2