success, today i installed Realtek-High-Definition-Audio-Driver_TT1D9_WIN_10.0.220.1_A81.EXEnow reboot is fast, with enabled soundcard delay is about 5 secs (in previous driver version there was a delay of 50 seconds).
Dell Precision 5760, slow boot with enabled Realtek SoundWire HW Audio Codec.when i disable Realtek SoundWire HW Audio Codec in device manager booting is 40 seconds faster!i have testet different drivers:best found driver has a delay of 20 seconds: Realtek-Audio-Driver_HH84T_WIN_10.0.66.160_A06.EXEwith all other drivers i have a delay of 40 seconds.similar problem here:[URL] never had a laptop that needs so much time to boot.  
Realtek SoundWire HW Audio Codec slow boot