A method of controlling an accelerator for transmitting media content received from a media server to at least one media player, includes receiving from the at least one media player a request for the media content; determining an operational state of the at least one media player; determining a plurality of priorities corresponding to a plurality of pieces of media metadata stored in the accelerator based on the determined operational state, the plurality of pieces of media metadata corresponding to the requested media content; and managing the plurality of pieces of media metadata based on the plurality of priorities.