Yes, I also see a massive difference in speed when switching iptv channels. In 7.0.3.012j it takes about 1.5 seconds to switch to the next channel. 8.0-8.0.0e takes about 9 seconds. I think that is a problem of the new version of Kodi and not Libreelec as the effect is the same for Kodi Kryption on Android.
then kodi 17 is not ready yet for iptv users, some people are saying its much better in milhouse build but yea some1 needs to build it for amlogic we need to wait till then and use jarvis thx for your answer