Here is the Sparrow Hair in Octane Render, using the same maps.
Definitely something with the UE4 Realtime Raster shader ability, it cannot give as nice looking hair for average characters with hair transparency, such as Paragon’s IN-GAME character.
In other words, it will look ‘okay’, and the average consumer will probably just accept it. But compared to other ‘slower’ rendering solutions it is poor.
What is weird, again, is that everything else looks so good. I guess hair is just one of those things that performing realtime engines just will struggle with…