Fix low framerate when using Music Mode

[Cheerpipe]

[roddone]

Hi, thank you for this fix. I didn't know about this NoDelay property. As i'm not familiar with this property, I think it would be better if we make it optionable because I don't want to introduce breaking changes or errors to people who used music mode and didn't need it until now.

[roddone]

Just added property "HighRateEnabled" on Device's MusicMode property. Please let me know if it suits your needs so I can merge thir PR. I will try to push new version next week with this feature and others things related to music mode that are waiting for too long ...