THERE IS AN STANDARD TRANSACTION WHICH SOME TIME TO GO TO THE NEXT SCREEN. THE FUNCTIONAL CONSULTANT WANTS TO KNOW THE REASON AS TO WHY IT IS TAKING SUCH A LONG TIME.
HOW SHOULD I GO ABOUT IT. HOW SHOULD I FIND THE REASON.
try ST05, SE30, SM50 etc...
Check how much data it is displaying on the next screen .
If it is more line items in the next screen it will take some time.
Or search for a OSS Note for the transaction performance problem.
What is the transaction?
Find out is there any custom devloped code (userexits or badi's) is there in between the screens.