[sow07]

Which faq?  Yours doesn't mention it.  There's the LibreElec FAQ but don't see anything there.  Or the Kodi FAQ/Linux FAQ.  

I ask because I believe I'm seeing this issue and am anxious to work around it but can't find information about it anywhere I've looked.  Can you provide a link?

I misspoke, I should have said Kodi Chromebox wiki page (the one linked in my sig) rather than FAQ 

 Hmm, I didn't see it there either, but maybe it's hidden or I'm being dumb.  Ultimately, I found the discussion and workaround for this severe network performance issue in the Kodi LibreELEC test builds thread.  Workaround posted here.  Thread pages 315-320 have the details.

Note, I didn't have a syslinux.cfg file in my /flash folder, just an extlinux.conf, but I added the "pci=nomsi" after the quiet parameter and voila, network performance shot back up from 1.5MB/s to 60MB/s.  Crazy!  I'm surprised more people are not complaining since 1.5MB/s is slow enough to be noticed when playing certain files off the network (you get the timer clock loading repeatedly).  Maybe as people upgrade to v9.0 just released it will heat up...hopefully a proper fix will come sooner than later.