NFPS / Private US channels lagging. UK channels smooth?

IPTV Private Server (NFPS)

Gtest413

New member
Jan 16, 2016
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Yes
Still having issues on channels lagging using kodi. It's seems to be the US channels, as some UK channels are running smooth. I've done the setting change in "video" which brought the lag to a minimum. However it is still there.
I run a sports add on that streams live sports without Any lag at all. I also have another box with STB Emulator that has all channels working flawlessly.
So I'm 99 percent sure its something in kodi, or on their end.
I'm out of ideas
Any support would be great.