Well it means the application you are using is not Aware.
Fix Blurry Fonts in Specific Applications
Many third-party desktop applications have blurry fonts when scaling is used. Windows 8.1 enables DPI scaling for all desktop apps, and ones that arent high-DPI aware will have blurry or fuzzy text, especially when theyre blown up to 200%.
Theoretically, this applies only to older applications that arent aware of DPI scaling.
To fix this problem, you can disable display scaling for specific apps. To do so, right-click the desktop applications shortcut and select Properties. If the application is on the taskbar, right-click the taskbar icon, right-click the applications name, and
select Properties.
Even for enterprise we disable the DPI scaling per application using regkey as you can see here:http://blogs.technet.com/b/mspfe/archive/2013/11/22/disabling-dpi-scaling-on-windows-8-1-the-enterprise-way.aspx