I can't complain for my home internet speeds - I have 101/35 mbps, but despite that I was terribly annoyed with very frequent buffering issues while streaming video from sources like Food network (btw: 100% free content, good HD quality and No ADS !!! - it's not 100% complete or functional, but it does gets changed every month)
There is a fix and it is not hard to implement.
I done it and happy to report that nothing got broken, yet the buffering issue is completely gone.
More over, during pause the buffer builds up so much quicker now.
Without further adieu here's the fix:
Let me know if this was helpful to you.....
P.S: Oh, and XBMC ROCKS !!!
P.S.S: This is how to embed Youtube in XenForo type forum -
https://xenforo.com/help/bb-code-media-sites/