GUIBox Text not clear in android

Hi,

I created a a guibox with dynamic text. When I run my application on my windows screen the text s crystal clear while on my android device it is hard to read. What can I do? I saw several tutorials using canvas but I need to populate the text from an xml file. Here is my code

 void OnGui()
 {
    GUI.Box(new Rect(50, 50, Screen.width - 100, Screen.height - 100), fullContent);
 }

These are the print screen of the text.

This is the text displayed on windows

this is the text displayed on android

Would you please help?