Problem
The Lenovo P50 has a great HD display but some programs have blurry text in Windows 10. Most are fine and even two different subwindows within the same program can have different behavior, ex. the top bar of an NI Diadem script dialog box editor is fine but the text in the editor workspace is blurry.
Temporary Fix
https://www.groovypost.com/howto/fix-fuzzy-windows-10-fonts-high-resolution-displays/Short overview: go to shortcut's Properties\Compatibility
\check Disable display scaling on high DPI setting