@Vesta When windows are designed, programmers may specify the size of various things, like the window size, in pixels. When you move to a higher resolution
screen, these pixels are smaller. Hence, on Windows, these windows are smaller. As a Mac user, I have been blissfully unaware of this because MacOS takes care of it all.
Right now, I am working to fix the JavaScript
plugin to cope with Windows and high resolution displays.
See here for example. In this particular case it is turning out to be a real pain and weeks of
work. You may encounter issues with various
parts of
OpenCPN and plugins, which will need reporting and, hopefully, fixing.
The real solution is to get a Mac

.