Enable NVIDIA hardware decoding for smooth playback
Do you track what your competitors do?
Install Davinchi Resolve studio 15 and just see how it play H264 files.
Just smooth and without any proxy even at multicam sequences.
And all this with a discrete NVIDIA card of the middle price range
Just tell me - you will do it in the next 50 years ?
I hope that I will be in time then for you to rejoice.