Speed (percent and Max) Reset.... why?

Hi, my Max Speed and the percent of allowed Speed is always reseted whe connected to my OBD Dongle... That's no good ideal, sind my max Speed is always 120 and to get the correct arrivaltine I set the per ent to 75%. Since you are everytine calculating an earlier arrivaltine, this is really important to get closer to the real arrival time! AND.... why do you route my BEV over a Highway, when there is a route with the same arivaltime without Highway? I think a routeplaner for BEV's should go the efficent way... makes more sence! thanks Tom Exel