Be sure to research the 144hz displays and if you can get over 60 across HDMI.
Also driving 2 displays with the 1050 may find speed/frame drops. At least you knew going in.

2. A little less smearing. I don't see much of this anymore except when the display is cold.

3. YES. Google up HDMI INPUT LAG. Now check your display for tests in input lag. (hint. other than HDMI can have input lag too. HDMI does not mean on its own, input lag.)