Sprint Telenav - Any way to improve ETA accuracy?

[Gearhead01]

I recently started using Sprint's Telenav on my Touch Pro. Yesterday I used it to map out a 400 mile trip. Having made the trip before, I knew it should take me about 6 1/2 hours. When I set up the trip in Telenav it came back with an ETA of nearly 8 hours. Now, I realize that I have an issue with not adhering to the posted speed limit very well, but is there any way to tell Telenav this so it can base my ETA on my driving style. For instance, can I tell Telenav that I normally run 7 mph over the speed limit and have it calculate the ETA based on this information?

On yesterday's trip, the ETA continually decreased as I went (as expected) and eventually matched up with my actual trip length of 6 hours 35 minutes. Sure would be nice if it was closer to the actual when I started my trip.