I drive about 10K a year, which is below average. I have had mine for 2 1/2 months and just turned 2500 miles the other day.
I haven't discovered any reason to use or pay attention to the average MPH. I reset it every fillup and mine runs in the mid-twenties to sometimes as high as 30. But I see no value in it whatsoever.
Any plans on changing your oil in 5 more months? Don't go over a year on the same oil regardless of mileage. (General wisdom, but debatable.)