Hi Pawan ,
You have to take a note of DTP's run time.
Identify the DTP's taking longer time in execution. From the DTP monitor beneath the Data Package you have to check where exactly it is taking time. You would get to know the time taken in routines defined in the transformation.
Also as you are going for Performance tuning, i would suggest you to take a note that if considerable time ( out of DTP total execution time is taken by DTP) in conversion of Value to SID's you have to go for Number Range Buffering.
Thanks
Kamal