Isn't this too much? 200 lbs a week of salt softner? What can I do?
The amount of salt necessary for proper operation is a function of your water quality (hardness, iron, etc) with higher levels requiring more salt, amount of water used, and design choices like size of unit and frequency of regeneration. Without information on all these factors there is no way to know whether your useage is excessive.
That said it certainly sounds high and could be an improperly set up unit or a malfunctioning unit. If you want more help here provide your water analysis, your water usage, and specifications on the softener (cubic feet of resin) as well as the programming (set capacity and salt dose at minimum) but all programming would be better.