How do you fix a poor acceleration and idling problem?

I experienced poor acceleration in my '95 Chevy blazer, which eventually became so severe that when accelerating, the engine nearly stalled.It turned out that my catalytic converter was disintegrating, and choking off the exhaust so severely that the backpressure was causing engine retardation. I took the vehicle to a muffler shop, where they performed a backpressure test on the exhaust to diagnose the problem. After replacing the catalytic converter, the problem was corrected.