Android : Game hangs for a second when first playing audio

Pretty much what the title says. It's just that the first time it plays it completely hangs the game for a second and then resumes normally. After that the sound is played exactly on time, no delay or anything Here is the code :

     private int Score;
     private AudioSource Source;
 
     void Start ()
     {
         Source = GetComponent<AudioSource>();
         Score = 0;
     }
 
     void OnTriggerExit2D(Collider2D other)
     {
         if (other.CompareTag("Score"))
         {
             Source.Play();
             Score++;
             Debug.Log(Score);
         }
     }