Ok, I looked into it.  Nothing was massively incorrect.  The likely problem is the app you're using isn't properly penalizing traffic lights.

I did the following to encourage the faster route:

1. Reduced the location of where the 50 mph advisory starts and ends so the faster route has 65 mph for a higher percentage of time.
2. Added a curve hazard to the tight 25 mph ramp.
3. Added 65 mph speed limits to the ramps and left the 50 mph as an advisory.

This hopefully will be enough to get all the routers to use the faster route.