Help!  

I just received my U2415 monitor a week ago and so far am not pleased.  The issue I'm having is the resolution of the texts.  Pictures look great!  Letter O's can look smeared.  It's hard to read one sentence without straining my eyes.

I have my monitor connected to a 2014 Mac Mini via the stock mini DP to DP cable.  I tried tweaking the sharpness, contract, (the basic stuff), etc with no success.  

I'm very close to returning this monitor unless there is a solution.  Am I just spoiled by looking at the Retina display on my macbook pro?

Any suggestions or comments would be appreciated.