Bot takes quite long to start playing a song

[xd003]

i have deployed the bot on heroku , everything running well but one major issue is that the the bot functions quite slow while trying to play music .To be more specific , once i have sent /play song_name , its takes literally 10 seconds approx to start the song . This doesnt seem to happen in other similar telegram music bots , ( they take within 3-5 seconds max ) , so i beleive this bot could be improved in this regard