Hi,
I’ve had problem with the resolution in Intel XDK. I found out a way to bypass it by exporting to HTML5 instead of Cordova, and the resolution is great!
There seems to be some kind of a bug when exporting with Cordova that the resolution gets all blurry.
Here you can really see the difference. Above is with the HTML5 export and below is with Cordova through Gdevelop. If anyone knows how to solve this bug since I want to have ads in my game then please let me know 
Happy new year!