The re-map and aftermarket exhaust didn't change that on my bike. The tech told me the do-it yourself 15min idle does nothing. I did it anyway, no help.
Try going down a tooth on the front sprocket. These bikes need a little tweaking to get them right.
I did the throttle position sensor thing which seemed to help mine some, but I went 2 teeth larger on the rear and agree that seemed to make the biggest difference. A little less sensitive plus it brightened up throttle response all the way thru.