Openquery to oracle take along time why?

if i run this in oracle , also throw network its took 0.24 sec , very qucick"select SEQ_ID, FCLTY_ID, ACTION_CODE, SKU_ID, SKU_DESC, UPC, INNER_PACK_QTY, "GROUP", LOCN_ID, IS_DOWNLOADED, DOWNLOAD_DTIME, DOWNLOAD_INFO, CREATE_ID, CREATE_DTIME, MODIFY_ID, MODIFY_DTIME from xfer_in_sku xsku order by xsku.seq_id"but if i run it from openquery itd took 4 mintues - why?select * from openquery(LinkedSRV, 'select SEQ_ID, FCLTY_ID, ACTION_CODE, SKU_ID, SKU_DESC, UPC, INNER_PACK_QTY, "GROUP", LOCN_ID, IS_DOWNLOADED, DOWNLOAD_DTIME, DOWNLOAD_INFO, CREATE_ID, CREATE_DTIME, MODIFY_ID, MODIFY_DTIME from xfer_in_sku xsku order by xsku.seq_id')plz helpthanks