4k Film stutters

[korn2017]

Hi everybody,

No matter which image I use, the following film jerks under Kodi.

 R.E.D.2.Noch.aelter.Haerter.Besser.2013.GERMAN.DL.2160p.UHD.BluRay.HEVC-4K


  iMDB.............: https://www.imdb.com/title/tt1821694/                 
  Length: 116 min.                                                  
  Video: MPEG-H HEVC Video / 2160p / 23.976 fps / 16:9 / Main 10 Profile 5.1 High / 4:2:0 / 10 bits / HDR / BT.2020 /
  Audio: German / DTS-HD Master Audio / 7.1 / 48 kHz / 24-bit (DTS Core: 5.1 / 48 kHz / 1509 kbps / 24-bit)                                                                                            
  Audio: English / DTS-HD Master Audio / 7.1 / 48 kHz / 24-bit (DTS Core: 5.1 / 48 kHz / 1509 kbps / 24-bit)          
  Subtitle: German/English  Forced / German                                                                        
                                                          


With my Firetiv stick 4k no problem?

Does anybody know the reason? And which image I should use on rockpro64?