The best way is to edit the exe manifest with something like resource tuner and add
<application xmlns="urn:schemas-microsoft-com:asm.v3"><windowsSettings><ms_windowsSettings:dpiAware xmlns:ms_windowsSettings="http://schemas.microsoft.com/SMI/2005/WindowsSettings" xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">false</ms_windowsSettings:dpiAware></windowsSettings></application>
after dependency to set the exe as dpi unaware. This way the program will be a little pixelated but it will be in a confortable size.