I have a Fox for dos app on an NT Server.

At 5:00 every night a program runs on the Server that processes through most of the tables and does a LOT of processing.

What affect does it have depending on the amount of users using the application at that time? How will the speed decrease on the NT server and the users workstations? and if you can answer the previous questions, why does the speed decrease?

Answers appreciated.
Thanks
Kev