Inaccurate gps

The gps is always off by 50-100 ft. Is there anyway to adjust the accuracy? Since there is no verbal “next left” etc, or beep the road is passed a lot. Not all the roads have signs it is sometimes difficult to make a quick decision while in traffic. More gps accuracy would help sole this. The iphone has no adjustment for accuracy either.

gps or not about Scout GPS Link, v1.0.32