In that case, it might be a good idea to have xperf log. Could you please run
Windows SDK setup and select to install "
Windows Performance Toolkit"? Once it's installed run the following command from elevated (Run As Administrator) command prompt (if the command asks you to modify the registry, please do that, reboot your computer and re-run the command):
Code:
xperf -on PROC_THREAD+LOADER+PROFILE+INTERRUPT+DPC+DRIVERS -stackwalk Profile -BufferSize 1024 -MinBuffers 256 -MaxBuffers 256 -MaxFile 256 -FileMode Circular
Now, play some audio until you experience the lag issues you mentioned. Once you do, run the following command to stop the logging:
Code:
xperf -stop -d C:\CPU.etl
Compress
C:\CPU.etl log file and attach it here.
Thanks.