Compuser10165 :
What dislplay cab;e are you using? You need at least hdmi 2.0 or displayport 1.2 to support 4K at 60Hz.
please read the question:
Ok thanks the reason I asked is because I was getting a lot of mouse lag even on 1080 @ 60 Hz but I just found a setting on the actual monitor saying enable displayport 1.2 and that seemed to fix it.
Bf1 played smooth until I changed windows back to uhd and the monitor said it's at 1080 30hz. Is there any way around this?
this means he already able to run it fine, but seems to have trouble after playing games
@OP, well games can resize the resolution, but sometimes after u play games, the resolution didn't change back (maybe that's why the only thing that changes are refresh rate, u should be able to change it manually)