4k videos stuttering w/ Fx 6200 OC & GTX 970 on JS8500 using Kodi

Hello,

I’m using Kodi 16 Jarvis with Madvr. When i play 4k videos i get alot of dropped frames.. Totally unwatchable. Even if i use dsplayer default player it stutters.
If i play the 4k video using my tv it doesnt stutter or if i use windows 10 default player. So its something with Kodi. Thank you in advance!

Some examples of video i’ve tested.

Format : Matroska
File size : 45.0 GiB
Duration : 1 h 38 min
Overall bit rate mode : Variable
Overall bit rate : 65.3 Mb/s

Video
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main [email protected]@Main
Codec ID : V_MPEGH/ISO/HEVC
Duration : 1 h 38 min
Bit rate : 59.2 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.298
Stream size : 40.9 GiB (91%)

————————————————————————————–

Format : Matroska
Format version : Version 2
File size : 65.6 GiB
Duration : 2h 31mn
Overall bit rate : 61.9 Mbps
Encoded date : UTC 2016-07-19T22:47:13Z
Writing application : HandBrake 20160604111422-9206444-master 2016060501
Writing library : Lavf56.1.0 / Lavf56.1.0

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main [email protected]@Main
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2h 31mn
Bit rate : 60.1 Mbps
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.302
Stream size : 63.6 GiB (97%)

————————————————————————————–

Format : Matroska
File size : 52.0 GiB
Duration : 2h 3mn
Overall bit rate : 60.2 Mbps

Video
Format : HEVC
Format profile : Main [email protected]@Main
Codec ID : V_MPEGH/ISO/HEVC
Bit rate : 58.3 Mbps
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.601