Photoshop CS Menus and Icons too small on Windows
if you navigate to where the actual application file(.exe) is,
right-click it and select properties,
choose the compatibility tab and select “Change high dpi settings” under the settings section,
in the next window, select the checkbox that says “High DPI scaling override”,
and choose “System” from the drop down.
-Hit ok to save the changes, and then re-open Photoshop