WIN98se/ADSL Internet slow after adding router

A four PC network is just fine with aSpeedstream ADSL modem and a hub.
Replacing the hub with a Belkin ADSL Router results in slow web page up
dates or timeout messages. These on sites like time.com, google.com
etc. are very slow to load. First page may open but any graphics
remain "broken" for a long time or neverfill in. Restoring hub
configuration and all is fine. I bought the router for wireless but the
problems also occur on the wired LAN.

Any thoughts?

Cheers,
Z