Expert option, set with care. When enabled, the application will try to apply the same thread priority class as the DSP thread(s) to the ASIO driver own thread.

In most cases, the ASIO driver thread is already running at a high priority, and possibly even higher than the application DSP thread(s). In this case, enabling the option is detrimental.

The only case where enabling the option will improve the audio performance is when the ASIO driver thread does not run at real-time or near real-time priority. This can happen when the driver thread does not have the right priviledges, or when the driver is badly designed.

Determining the ASIO driver thread priority class requires using the Windows performance monitor and can be a bit tricky. The easiest way to know if you require this option is to enable it, but only if you experience audio problems. If after testing this did not solve or improve your problem, revert the option back to off.

Please note that if you enable this option, you must also set the global application priority to "real-time" (running the application as administrator might be required) and the DSP thread priority option should be set as high as possible. Failing to do so will likely prove detrimental to the performances.