You hear glitches during packet loss, thats all. They is no way any other codec would hide packet loss. Configuration changes glitches in SBC? I never heard about.
I just happened to have made a study of SBC, how it works, how it can be improved, etc. and wrote the following article.
https://docs.google.com/document/d/1YPTwFhvo99suyrwkT4Z97so9_xwoOGkpSqgveLpYvYc/edit?usp=sharing
There are several internal parameters that get negotiated at connection time, which, if set properly, could improve fidelity by increasing the overall bitrate. I've also created audio files so that you can judge for yourself (link to audio samples is in the article).
One of the important conclusions is that, if the source (SRC) negotiated the connection more wisely, SBC can improve audio fidelity *without making changes to the sink (SNK)*, which means it should work on the huge majority of legacy speakers, headsets, etc.