You'll actually noticed improved braking from the start to the end of your ride. One good ride is usually all it takes. If there is a long downhill section, ride (drag) the front (disc) break a bit, and by the bottom, it should be broken in fine!
The only issue with front disc, rear vee that I consider as valid, albeit minimal, is "LEVER FEEL". Like I said, not a big deal, but the front and rear brakes will "feel" different at the lever! Something you'll get used to in no time at all!
L8R
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"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
"Your Bike Sucks" - Sky Yaeger