RealDebrid can help with buffering issues.  Compatible with all major streaming apps like Cinema and TeaTV.  Most users use the free streams provided by the app.  Usually, that is good enough but 50,000,000 users (around the world), can be using the same stream, which causes bottlenecks.  RealDebrid provides private streams (not shared).  The cost is small but it can help.  It can't compensate for bad internet but it can help.  I use it and find value.

I can no longer get updates to this list so the list is as is

AS of 11/07/2022