See if you can change the resolution of your second display to like 1360x768 or even 1280x1024, 800x600 if things get desperate.
If you don't want to or can't change the resolution of the screen, depending on what operating system you're using, there might be a way to magnify all the text on the second monitor in the system settings of your OS. I don't have a recent version of OSX running so I can't immediately hlep you if you're using a Mac with the latest osx_feline/state_park_naming_convention... my guess is that it would be somewhere in the accessibility/universal access region of System Preferences... but in windows 10 you can scale the text up in the display settings for that monitor like so,
right click on the desktop, left click display settings and under the large title 'Scale and Layout' there's a drop-down menu with a percentage you can increase to say, 150%, and see if you need bigger than that.