Performance tuning of Master Data Table: VBAK LIPS VBFA MSEG MKPF

Question

Hi, ALL
     How to improve performance to following statements: inner join.
select  LIPSVGBEL LIPSVBELN MSEGMATNR MKPFBUDAT
           MKPFUSNAM MSEGLBKUM MSEGBWART MSEGWERKS
           VBAKIHREZ MSEGMBLNR VBAKAUART LIPSPSTYV
          MSEGLGPLA MSEGMEINS MSEGMJAHR MKPFMJAHR
into corresponding fields of table it_out
from ( VBAK
       <b>inner join</b> LIPS
       on LIPSVGBEL = VBAKVBELN
      <b> inner join</b> VBFA
       on VBFAPOSNV = LIPSPOSNR
       and VBFAVBELV = LIPSVBELN
       <b>inner join</b> MSEG
       on MSEGMATNR = VBFAMATNR
       and MSEGMBLNR = VBFAVBELN
       <b>inner join</b> MKPF
       on MKPFMBLNR = MSEGMBLNR )
      where VBAK~AUART in S_AUART
         and VBAK~IHREZ in S_IHREZ
         and LIPS~PSTYV in S_PSTYV
         and LIPS~VBELN in S_VBELN
         and LIPS~VGBEL in S_VGBEL
         and MSEG~BWART in S_BWART
         and MSEG~LBKUM in S_LBKUM
         and MSEG~MATNR in S_MATNR
         and MSEG~MBLNR in S_MBLNR
         and MSEG~MENGE in S_MENGE
         and MSEG~WERKS in S_WERKS
         and MKPF~BUDAT in S_BUDAT
         and MKPF~USNAM in S_USNAM.
Thank you very much.

Answer 1

Thanks all of you and your suggestioin.
Now I have modified my original select statements to two parts.
1. select LIPS VBAK VBFA to an internal table it_A
2. select MKPF MSEG to an internal table it_B for all entries in it_A
3. disuse "into corresponding fields of table"
After that, my performance has improved for about 10 times.
Welcome any other suggestions.
Performance is an forever topic, I think:)