If you mark the application DPI Aware it must be aware to do more good than harm.

Your easiest option would be to mark it for GDI Scaling but that requires a recent version of Windows 10. You can do that via the EXE's Properties by choosing "System (Enhanced)" scaling appcompat.

The MSDN Blog post on this seems to be gone now, since it was an old issue everyone is expected to understand at this late date. Support for it came out back in 2017.