Why is the resolution wrong on an Xtrons display

VillageGuy Registered Users Posts: 3
Apprentice Traveler
I am currently trialling version 3.4.7 running on a new Xtrons head end. Unfortunately everything displayed is too small, for example the speed icon is too small to see from any distance. The same anomaly exists when I use GO via Android Auto via my Samsung S20.

TomTom Amigo works perfectly on both platforms and I would have expected a paid version to be even better. Is there a solution?