Compute Module • CM5 can't play two 4kp60 HEVC videos smoothly

Code:

p@raspberrypi:~ $ cvlc --play-and-exit --drm-vout-display HDMI-A-1 00_hevc_4k60P_main10_pq10.mp4VLC media player 3.0.22 Vetinari (revision 3.0.22-0-gf9020c4df0)[000055565d0bd700] dummy interface: using the dummy interface module...[00007fff080fc070] wl_xdg_shell window: <<< WL XDG: 3840x2160 fs 0 standalone 0[00007ffefc0013f0] wl_dmabuf vout display: <<< Open: DPS3 3840x2160(3840x2160 @ 0,0 0/0), cfg.display: 3840x2160, source: 3840x2160(3840x2160 @ 0,0 1/1), scale=0/0[00007fff1c00c260] avcodec decoder: Using DRM Video Accel for hardware decoding[hevc @ 0x7fff1c1094d0] Could not find ref with POC 96[hevc @ 0x7fff1c0a4d90] Could not find ref with POC 96[hevc @ 0x7fff1c1094d0] Could not find ref with POC 104[hevc @ 0x7fff1c0a4d90] Could not find ref with POC 104[hevc @ 0x7fff1c0eac80] Could not find ref with POC 104[hevc @ 0x7fff1c1094d0] Could not find ref with POC 104[hevc @ 0x7fff1c0eac80] Could not find ref with POC 116[hevc @ 0x7fff1c0eac80] Could not find ref with POC 124[hevc @ 0x7fff1c1094d0] Could not find ref with POC 124[hevc @ 0x7fff1c118990] Could not find ref with POC 124