Did you try it yourself (the game Murder)? The below makes no difference when I test with my latest macOS dev builds. My i7 is not taxed by the emulation. The sound does not strike me as what it would sound like if it was an overloaded CPU, but I can't be absolutely certain.
-------- Original Message --------
Subject: [hatari-devel] TT emulation sound setting experiment
Local Time: November 25, 2017 9:56 PM
UTC Time: November 25, 2017 8:56 PM
From: dsavnkff@xxxxxxxxx
To: hatari-devel <hatari-devel@xxxxxxxxxxxxxxxxxxx>
(In comment to TT sound on Atari Forum)
--sound-buffer-size 10
--sound-sync true
I always mention the settings above because I wrote some of the code and
extensively tested the results for guaranteed best sound.
If the sound is still bad, you've got problems. Possibly an overloaded cpu.