Download it @1080p, as for instance (- 3 in this case): https://vimeo.com/215581256
Play it on Pot Player -> Ctrl/B (for Blur) and see the difference (for example, shot on minute 1:17... we might even mix it with Ctrl/R for tuning sharpness as you wish and voilà, as usual, couple/combo is the secret of a good picture outcome ; ) BTW, as post expert as you are, you well know it ;-)