Hello, I have a MBP 13" 2016 and a 4K monitor : LG 27UD88. But there is one issue with 4K monitor and MBP : if you want the best performance you must set it to 1080p or 4K only... because between that all UI is not smooth and youtube video in full screen overload the CPU/GPU (= heat + fan at 80%). Problem : 1080p is too big and you don't have much workspace whereas 4K is too small and u can't read the text. Now I need 2 monitors to work with I'm looking for a solution. My budget is 1000€ so I can't afford 2x Ultrafine 5K and set them in 1440p. (also the big bezel looks pretty bad). I see no one talking about this issue, I supposed you all set your 4K monitor in 1080p scaling ?