Yes, it will take a long time. AFM is slow. New, fast AFMs exist. We don’t have one. Go get a coffee.
Seriously, though, if you sit and watch someone else do AFM, you will get bored. Images take about 5-10 minutes each. On a good day. With sample mounting, and instrument set-up this equates to about 1 sample an hour, 6 samples a day. This assumes you only want 3 images per sample, and we are just getting pretty pictures, no fancy stuff! Rougher samples take longer, as do dirty samples.