Performance and BAPI

Hi Gurus.

I'm select data from kna1 and adrc i need fields :

City1     

Region   

Street    

house_num1

house_num2

Post_code1

ADDRNUMBER

The people told me the bapi Has a better performance, then i used the 'BAPI_CUSTOMER_GETLIST'

it has all fields except house_num2.

What is the best solution for perfomance?

1- use the bapi and after select only the house_num2 field  by select or

Don´t use the bapi and use only select?

Thanks for help.