Expection from Delegate Feature

Question

 I have gone through some delegate article from that I understood like these advantages like 1)asynchronus method call 2)function pointer 3)anonymous invocation 4)creating events etc... are possible with delegates

   I want to know

   Is it possible to improve the speed of output by using delegate?

  suppose I am using 2 or 3 methods and consider the output execution of each method  is time consuming  so can I reduce this huge execution time in anyway by using delegate?

   because multipe methods can be assigned to a delegate so what kind of execution perfomance is actually a programmer is expecting (speed or avoid runtime errors) other than the above mentioned benifits?
Any good advises will be helpful to me