I had issues when streaming music from my nexus 5X to a raspberry pi 3 (audiophonics). The bluetooth connection could only last a couple of seconds (while it was working fine with a UE bluetooth speaker).
An update to android 8.1 partly solved the issue (the connection was lasting a few minutes).
Then I found out that the dhrone raspdac display script (installed from the audiophonics plugin) was eating more than 10% of CPU time.
Now that the display script is deactivated, bluetooth streaming seems to work fine (did not try for hours).
I will try to install another script, but I’m already happy with the result 🙂