In the very few games I play 60Hz is way too low so I haven't attempted it at all -- I want the maximum Hz/FPS.

As for another switch, I am open to ideas if you have them. In my local market I was only able to find like 2-3 of them [that support DP 1.4] and they are all north of $250 -- which I don't mind but it would be non-pleasant to buy 5+ of them just to experiment.

Maybe my requirement for DP 1.4 is silly though. Maybe HDMI would be fine.