Live TV stuttering and sync issues

I have a Hauppauge HVR-1250. Now on a Pentium 4 3.06Ghz machine Kodi 17 rc4 on Windows 7 32bit.
I have had similar results on Windows 10 and Ubuntu 14.04 LTS.
Similar results whether I’m using NextPVR, SWMC, or TVheadend.
Similar results whether the receiver is on the same machine as Kodi or on another.
Similar results on earlier versions of Kodi back to 15.

When I watch Live TV on WinTV7 or 8, WMC, NextPVR or TVheadend no stuttering or buffering or sound sync problems.

When I watch Live TV on Kodi the best case is SWMC where the images look like “computer” videos (skipping frames) and the sound is just a bit out of sync, but with buffering.

With NextPVR I tried all of the filters.

I am getting tired of changing computers and OSs. I seem to be the only one with the problem. Are there any adjustments to Kodi that I’m missing?