Time out error!!

Hi Experts,

i have the following query which elapsing more time, so it is displaying time out error.

Table ZABCTABle has 10000000 records.

SELECT MATNR

          MAKTG

          MAX( PERCENT_MATCH ) AS PERCENT_MATCH

          MATKL

          MEINS

          MTART

     FROM ZABCTABLE

     INTO CORRESPONDING FIELDS OF TABLE LT_DUPLI

     WHERE (Some Condition)

     AND MATNR_STATUS NE 2

     GROUP BY MATNR MAKTG MATKL MEINS MTART.

Please any one help on this.