I'm using Surface Book and Wayk windows is very samll
This is a known issue that we are working on, but it is unfortunately not a small task to complete. In order to keep Wayk Now small and lightweight, no third-party GUI framework is used. On high dpi, Wayk Now will appear very small at this point, since it advertises support for high dpi but ignores it for sizing the GUI.
The alternative would have been to disable high dpi support in the application, which would let Windows scale the Wayk Now windows automatically so they appear of the right size. However, Windows reports incorrect screen resolutions when high dpi is disabled, so I had to make a choice. The current compromise is that Wayk Now appears very small on high dpi, but the screen sharing server works correctly.