Your last two posts describe a situation that leads me to suspect the Drivers in use for your current sound device.

There may be a driver update released for that device, worth hitting the mfr's support website to see, and if the drivers listed there for your OS are a different version than the ones you are currently running, worth a download and install to see if performance does improve. Driver update is reversible, so worth trying.

"Drivers, Drivers, Drivers..." (Bill Rule's rule, from somewhere around '98, still lives on.)


--Mac