You can scale the text/button sizes of Slicer many ways:
- Reduce font size in Slicer in menu: Edit / Application settings / Appearance / Font and size
- Reduce the font scaling by running
set QT_SCALE_FACTOR=0.5
in the command console and then starting Slicer in that console (you can make this permanent by adding this to your environment variables or creating a .bat file that sets this and then starts Slicer) - You can adjust text scaling settings on your computer
- Drag-and-drop the module panel to a second monitor