Hello Andre,
If you run Windows you could change the text size, which would be a global property for all apps, but it should make the interface have larger text if that is what you are trying to do. For example mine was set at 100% and changing it to 150% had a dramatic effect on VCell ( and everything else ).
To change your display in Windows, select Start > Settings > Accessibility > Text size. To make only the text on your screen larger, adjust the slider next to Text size. To make everything larger, including images and apps, select Display , and then choose an option from the drop-down menu next to Scale.
Jim F.