Haha oh boy. Kliking on a period Win98 PC certainly brings back some good memories and old frustrations. Hand in hand. Back in storage you go.
Use the password speedtest to run a simple benchmark. My vintage box can handle about 80 Yellow Joggers before it starts slowing down.
(The vintage box in question is an OptiPlex GX1 tower with a PIII CPU @ 450MHz and 512MB RAM.)