I have just installed 4x DS-2CD2387-LU(C) cameras on a DS-7616NI-12/16P NVR with 2x 8TB hardrives.
I set everything to the highest quality settings, 3840*2160 8MP, max bitrate at 16384 variable, 25fps, H.265, medium quality etc.
When trying to live view on Hikconnect the cameras either show...