Placing your Via-Points at the Route or at the actual place where you are able to stop/park with your vehicle might improve the situation. Some POIs like larger shopping malls or viewpoints may be too far away from drivable roads.
Kurviger can support you with the function “Snap waypoints to road”, but beware that you may need to reenter the waypoint names if they were automatically varried-over from a POI.
4900km is a long route. Although the App can still handle it, there are some disadvantages:
- At that lenght you are getting close to the limit where the app cannot calculate the route due to technical limitations - sometimes it hits already around 6000km, sometimes 8000km - it is not directly dependent on the kilometers, but on the system you use. There are several discussions about related issues on the forum, like these: Too long route bug - #24 by boldtrn
- The route takes longer to recalculate if you make a deviation or skip a waypoint.