Video Buffering for both OTA live or recorded video

Raspberry PI 3+ running Libreelec , TVHeadend and Kodi
Hauppage USB tuner ( WinTV-HVR-950 tuner). Even tried using Hauuppage Xbox one tuner.
Mpeg2 license installed as you can see the log. CPU does not show activity above 50% usage.
Tried using 6A power supply for Raspberry PI to make sure it is not running out of juice