No, it isn't and only you can fix it on your end.
How come other software manufactures have no problem with creating DPI aware Windows programs that are scalling up correctly? This isn't windows limitation. On Microsoft website you can find a guide explaining step by step how to create DPI aware programs.
Microsoft Office 2013, WinRAR, Firefox, Adobe Lightroom, foobar2000, Dropbox, and many more got no problem with scalling.
High DPI screens are getting more and more popular and 4k will replace 1080p once the price will drop. Will you then still keep to ~90dpi standard?
Have a look here and please explain me why Microsoft Word is not facing 'Windows Limitations'