this code is low performing while run in huge data ? try to better joins any one?

SELECT VEN.VENDOR_NAME SUPPLIER_NAME,       INV.INVOICE_NUM INVOICE_NUMBER,
       INV.INVOICE_DATE INVOICE_DATE,
       INV.INVOICE_CURRENCY_CODE INVOICE_CURRENCY,  
       SUM(DIS.AMOUNT)  INVOICE_AMOUNT,
       DESCR.DESCRIPTION
  FROM AP_INVOICE_DISTRIBUTIONS DIS,
       Ap_Invoice_Lines Line,
        AP_INVOICES INV,
        AP_SUPPLIERS VEN,
       (SELECT AID.DESCRIPTION DESCRIPTION,
                AID.INVOICE_ID INVOICE_ID
        From Ap_Invoice_Distributions Aid
        where AID.DISTRIBUTION_LINE_NUMBER=1 and invoice_line_number=1) DESCR
  WHERE INV.INVOICE_ID             = LINE.INVOICE_ID
  And Line.Invoice_Id              = Dis.Invoice_Id
  And Line.Line_Number=Dis.Invoice_Line_Number
   AND DESCR.INVOICE_ID  =  INV.INVOICE_ID
   And Inv.Vendor_Id                = Ven.Vendor_Id