Need A Faster Paging In A Wesite Search Result Page

have over million rows in the our table and we are looking forward to increase the speed of our query .Any ideas?set ANSI_NULLS OFF
set QUOTED_IDENTIFIER OFF
GO
ALTER PROCEDURE [dbo].[mainSearch]
@startRowIndex int,
@maximumRows int,
@rowCount int out,
@countedRow int,
@QUERY nvarchar(400)
AS
SELECT _ID,_NAME,_TYPE,_CREATEDATE,ESTATETYPE,ESTATEDISPLAYPRICE,ESTATEDISPLAYPRICECURRENCY,ESTATEDISTRICT,ESTATECITY,ESTATEROOMCOUNT,NUMBEROFPICTURES FROM
(
SELECT ROW_NUMBER() OVER (ORDER BY _CREATEDATE DESC) AS ROWRANK,*
FROM ADDS AS ADTBL JOIN CONTAINSTABLE(ADDS_FTS,(ADDS_VALUE),@QUERY) as KEY_TBL
ON ADTBL._ID = KEY_TBL.[KEY]
Where (_DELETIONSTATUS=0)

)
AS RANKEDADDS

WHERE ROWRANK > @startRowIndex AND ROWRANK <= @startRowIndex + @maximumRows -1

if(@countedRow < 1)
SET @rowCount =
(
SELECT COUNT(_ID) FROM ADDS AS ADTBL JOIN CONTAINSTABLE(ADDS_FTS,(ADDS_VALUE),@QUERY) as KEY_TBL
ON ADTBL._ID = KEY_TBL.[KEY]
Where _DELETIONSTATUS=0
)
else
SET @rowCount = @countedRow

RETURN