This is short tutorial video on using the maintenance sections on ares wizard and TDB or Echo wizard to tackle buffering issues and also keeping your cache under control.
If you are experiencing buffering on kodi then this could be the video for you.
How to install the Ares Wizard -https://www.youtube.com/watch?v=XbJwR4_kOPY
How to install the TDB or Echo wizard -https://www.youtube.com/watch?v=KH2FSLLt-rc
I am not associated with kodi or any of its developers including third party.