TRENDnet Ethernet card interfering with processor

I recently installed a TRENDnet TE100-PCIW+ Fast Ethernet card in my system. It will connect (TCP/IP) to the network and internet, but at times (usually after it is on for several minutes) it will cause the computer to slow down/temporarily freeze, so even so much as mouse movements become slow.
A look at the System Monitor indicates that the processor usage is oscilating, and at times when it is at or near 100% is when it freezes.
My computer is a K6-2/300 running Win95
Thank you very much for any and all help anybody can offer.
-Malachi