With default recording decimation settings of "24ksps High", EMpower processes a standard overnight 5-component MT site in about 90 seconds.
Note that each processing runs on a single CPU core, so EMpower can processes many recordings at once with little reduction in processing speed.
Recordings using lower sampling rates take less time to process. For example, recordings done using the "24ksps low" sample rate process about 3~4x faster than the default data rate.
Generally, longer recordings take longer to process, with the processing time increasing linearly with the recording time.