อยากถามพี่ๆเรื่อง การ Query มันช้าผิดปกติน่ะค่ะ... COM("ADODB.Connection") + SQL Server

function consumption($year,$month,$goodid)
{
		
	include("../adodb5/adodb.inc.php");
	include("../config_DB.php");
	
	$conditionDate=date("F Y");

	$conditionDate1=strtotime("$conditionDate");
	
	if ($month==1){$Mth=strtotime("january $year");}
	if ($month==2){$Mth=strtotime("february $year");}
	if ($month==3){$Mth=strtotime("march $year");}
	if ($month==4){$Mth=strtotime("april $year");}
	if ($month==5){$Mth=strtotime("may $year");}
	if ($month==6){$Mth=strtotime("june $year");}
	if ($month==7){$Mth=strtotime("july $year");}
	if ($month==8){$Mth=strtotime("august $year");}
	if ($month==9){$Mth=strtotime("september $year");}
	if ($month==10){$Mth=strtotime("october $year");}
	if ($month==11){$Mth=strtotime("november $year");}
	if ($month==12){$Mth=strtotime("december $year");}
	
	
		$strConn = new COM("ADODB.Connection") or die("Cannot start ADO");
		$strConn->Open("PROVIDER=".$myDriver.";SERVER=".$myServer.";UID=".$myUser.";PWD=".$myPass.";DATABASE=".$myDB1); 
		
		$strSQL = "select sum(goodqty2) as goodqty22
		from soinvhd left outer join soinvdt on soinvhd.soinvid = soinvdt.soinvid 
		where soinvhd.docutype=107 and  soinvdt.goodid='$goodid' and NOT soinvhd.docustatus='C' 
		and  MONTH(docudate) = $month  AND YEAR(docudate) = $year ";

		$objRec = new COM("ADODB.Recordset");
		$objRec->Open($strSQL, $strConn, 1,4);
			
			While (!$objRec->EOF)
				{
				$monthA = $objRec->Fields["goodqty22"]->Value;
				$objRec->MoveNext();
				}
				
		
				
			$sumMonth=$monthA;

				if($conditionDate1 >= $Mth)
				{ 
				if(empty($sumMonth) or  $sumMonth==0){$sumMonth="<img src='../icon/don.gif' align='middle'>";} 
				else{$sumMonth="<Div align='center'>". number_format($sumMonth)."</DIV>";} 
				echo "$sumMonth";
				}
				else{echo"<img src='../icon/no1.png' align='middle'>";}
				
		$sumMonth=0;
		$objRec=0;
		$strConn=0;
		$objRec=null;
		$$strConn=null;
}
?>