This sounds like it might be simply down to the network connection and using dial-up. Things you can do to try and improve things:
Clear out temporary internet files on a regular basis.
Clear out temporary windows folders on a regualr basis.
Check the speed your modem is working at - around 44 kbps on a 56K modem is quite acceptable.
Check your line isn't on any shared service like DACS.
Get your line tested for noise etc.
Consider suscribing to OnSpeed, it has good write-ups and claims to boost speed up to 10 times faster. (Not for downloads or email though)
http://www.onspeed.com/en/index.php? Hope this helps.
Dave