Disappointed in 9.3

Was ruuning 8.2 and quite liked this distro. Decided to upgrade to 9.3. Wouldn't updgrade so had to install from scratch - big mistake! Finding 9.3 very slow. Took install suggestions as far as disk configure is concerned but do not really understand what happened. Told it may be something to do with the way the disk(LVM) is configured? Open Office keeps falling over. Desktop hangs quite often - what does this remind you of? At least killing the X-server allows me to sign on again. Would like to be able to switch on/off NIS also network devices? Seriously considering reverting to Fedora