HEVC video from DVB-T2 stuttering

When reading this thread, it seems I am experiencing same issue that I described here (it’s actually 1 of 3 issues I’ve got with TV dongle):

https://discourse.osmc.tv/t/tvheadend-osmc-tv-tuner-issues/93135/10

Anyway the stuttering/lagging is dominant on DVB-T2 HEVC streams. This is what I can see in the TVH server.