To bulid SSIS package taking more time after providing the value through expression to arguments property in execute process task

Hi ,

I am using Execute process task in my SSIS package, by using this task I am providing the password to the destination Excel file. In execute process task we have property Arguments, while providing the value to  argument through manually it is executing with in 2mins while providing the value to argument through expression it is taking more time(12 to 15 minutes).

For better understanding please see the bellow image.