Lagging/cracking/chopped sound on Windows 8.1 x64 guest - MacOs 10.12.1 - VBox 5.1.11

[GAAndrey]

Whenever I just test the sound with control panel sound device testing features I get a familiar to anybody related with music production latency cracking, which indicates in any DAW that you've reached your CPU/Audio interface capabilities limits and one of the options is to increase a buffer size. I don't know where's the buffer size tweaking in Virtualbox. Maybe it's the say kind of solution. If I plug in headphones with a mic and turn on "listen device" on the mic, then turn down the mic volume all the way down, the lagging becomes significantly more tolerable as it barely happens, but still it does. The piece of software that shows odd behavior with this issue is Audible Genius Synthorial. The sample played whenever you complete the challenge successfully has always sounded perfectly clear. Update: I just installed this software on the Windows 8.1 instance that I provided logfile for. Something even more strange happened. A couple of intro videos didn't have a correct I believe vertical sync. After that everything returned to normal. No sound or video issues at all.

[GAAndrey]

Fiddling with controll panel sound test and mic listen option.

[pentagonik]

Does this still happen for you with 5.2.2?