When doing my review for Sample Logic's Symphonic AI, I noticed lots of dropouts when loading new patches and other operations. I found a solution in the Audio Configuration file. I hope this might also help other users experiencing the same issue.
Go into Preferences | AUDIO | Configuration File
* Look for Dropout Msec and increase it to a value that feels comfortable. I just chose 2500 and it seems to work.
* Then go further down and modify the Thread Scheduling Model to 2. There are other modes but 2 has been the most stable for me.