background music stutters on iOS during fps spikes

If my mp3 background music stutters in iOS during frame rate spikes from garbage collection or level loading and other cpu & RAM read/write intensive operations, should I accept the stuttering as a normal output in such situation or the music supposed to be played smoothly independently despite the spikes?

The mp3 file import setting :

  • 3D sound : unchecked
  • Load type : Compressed in memory
  • Hardware decoding : checked

You can use Decompress on load - music will run smoothly, but will take a lot more time on game starting.