512k, win2k is going to camp on about 180megs ram, the app is using 400 so the disk is swapping heavily but it should be quicker than that. What happens if you gracefully bring the server down and up, if that doesnt help reboot. If that doesnt help, move the table locally to see if it thrashes just as hard. After that you should have enough experience to get a better job elsewhere :-)
regards,
daemon