Tbb is programming library in C++.
What thoughput problems? Is he running a single-threaded application or multithreaded application?
Tbb can help the application run faster if you can rewrite his application and it is single threaded and it is suitable for making it multithreaded. Or if the application is multithreaded but not well programmed.
Also, you need to have access to the source code of the application and to rewrite it using tbb library, it needs to be written in C++.
Have a look at a related example in James Reinders' book, and see for yourself whether you find it convincing.
P.S.: The subject of this thread is very, very useless: please be more specific, next time.