ATV 4K - 4K HEVC input stream choppy/stuttering playback on 1080p output

Hi,
Trying out the Infuse Pro subscription. Playing a 4K HEVC file on the new ATV 4K and Infuse. File on fast quadcore Gbit NFS NAS.

Unfortunately it stutters making it unwatchable. Is there something that can be tuned in inFuse software to be more compatible with HEVC 4K streams?

PS. I would like to add that other 4K HEVC streams are OK, so I don’t know whats so peculiar about this one. DS.

General
Unique ID : …
Complete name 2160p.WEB.DD5.1.HEVC.mkv
Format : Matroska
Format version : Version 4 / Version 2
File size : 5.98 GiB
Duration : 55 min 17 s
Overall bit rate : 15.5 Mb/s
Encoded date : UTC 2017-05-24 08:14:46 / UTC 2017-05-04 08:44:10
Writing application : mkvmerge v11.0.0 (‘Alive’) 64bit
Writing library : libebml v1.3.4 + libmatroska v1.4.5 / Lavf58.0.0

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5@Main
Codec ID : V_MPEGH/ISO/HEVC
Duration : 55 min 17 s
Bit rate : 14.8 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) : 0.074
Stream size : 5.72 GiB (96%)
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Statistics Tags Issue : mkvmerge v11.0.0 (‘Alive’) 64bit 2017-05-24 08:14:46 / mkvmerge v11.0.0 (‘Alive’) 64bit 2017-05-24 08:14:46 / UTC 2017-05-04 08:44:10
FromStats_BitRate : 15106391
FromStats_Duration : 00:55:17.690000000
FromStats_FrameCount : 79545
FromStats_StreamSize : 6264790338

Audio
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Codec ID : A_AC3
Duration : 55 min 17 s
Bit rate mode : Constant
Bit rate : 384 kb/s
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 kHz
Frame rate : 31.250 FPS (1536 SPF)
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 152 MiB (2%)
Language : English
Service kind : Complete Main
Default : Yes
Forced : No
Encoded date : UTC 2017-05-04 08:44:10
Statistics Tags Issue : mkvmerge v11.0.0 (‘Alive’) 64bit 2017-05-24 08:14:46 / mkvmerge v11.0.0 (‘Alive’) 64bit 2017-05-24 08:14:46 / UTC 2017-05-04 08:44:10
FromStats_BitRate : 384000
FromStats_Duration : 00:55:17.792000000
FromStats_FrameCount : 103681
FromStats_StreamSize : 159254016

Text #1
ID : 3
Format : UTF-8
Codec ID : S_TEXT/UTF8
Codec ID/Info : UTF-8 Plain Text
Title : English
Language : English
Default : No
Forced : No
Statistics Tags Issue : mkvmerge v11.0.0 (‘Alive’) 64bit 2017-05-24 08:14:46 / mkvmerge v11.0.0 (‘Alive’) 64bit 2017-05-24 08:14:46 / UTC 2017-05-04 08:44:10
FromStats_BitRate : 64
FromStats_Duration : 00:51:19.368000000
FromStats_FrameCount : 714
FromStats_StreamSize : 24932

Try a different source, perhaps. I was having problems and thought it was Infuse/Apple TV, and turns out Windows 10 had issues. Once I threw the films on my Freenas box they played without a hitch.

I know you aren’t using Windows, but maybe try a different source to see what happens. I just wouldn’t suggest trying a Windows machine.

Well, it was this specific encode that was troublesome. So just seeing if there are some easy compatibility settings on the infuse side that can help.

I have other 4K HEVC encodes that play wonderfully in infuse so I was just curious.