Secrets Of Organ Playing Podcast

Let's start episode 727 of Secrets of Organ Playing Podcast. This question was sent by Gene and he writes:My question is tempo, on BWV 624: Hilf Gott, dass mir's gelinge by J.S. Bach. I'm amazed that I can play it pretty well,  and it sounds pretty good on my funny, little house organ. Fluit 4, on the triplets and to Pedal. Cantus on Principal 8. I can play it @75, metronome, mostly. Soon, I will be able to do it, start-to-finish. Of course, I listen to people on YouTube playing it much faster. Is this an embarrassingly slow tempo? What should be a goal?