Allow Audio Gain (Normalise) to process in background

[outofsync]

Please can we allow Audio Gain processing to happen in the background, with nortification as to when processing is complete... On Mac Studio using Sony FX6 footage running off of SSD drives, I lose a solid 5 mins or so whilst waiting for Audio Gain processing to complete on a 45 minute interview, preventing me to continue working whilst this happens.