Something wrong in a Imac 27" screen

Is my first time with Ardour. I have an Imac with 27" screen. Well, when I start the program I see a very small letters in the interface of Ardour. Its imposible to read at 50cm of distance, very very small letters.
Garage band Works very well, but I dont know what happen with Ardour.

Any suggestion?

Thank you so much.

In the preferences pane is an option for font scaling, go ahead and increase it and restart Ardour.