Tip for those who want more fps:
Turn dynamic reflections from ultra to off.
I went from 65-70 fps at 1440p on a gtx 970 to 120 fps with just that one change.
Considering the game looks basically identical with it off or on ulta (you still get the cubemap reflections on your weapons and on certain parts of the environment) the performance hit for that one setting is ridiculous and not worth it.
The game also suffers from shitloads of input lag at 60 fps so doubling the framerate mitigates it somewhat.
Also important:
Stressing your video card does indeed cause input lag.
This may explain your hitching, but this definitely fixed my floaty mouse input.
Not sure if they ever fixed it
It doesn't really 'fix' the input lag, it just reduces it so it's a bit more manageable
the mouse is still very floaty at 120 fps for me (much less than at 60, but it's still bad)
Go back and forth between overwatch and cs:go or dirty bomb or even battlefield (which also suffers from some input lag) and the difference is night and day.
The input lag is the main thing putting me off from overwatch right now, it's just not enjoyable to me to have to fight the controls like this.
Hmmm... thanks for posting this. That would explain why upping certain graphical settings increases mouse delay without seeing a hit in FPS. Weird.
Which settings are those? I doubled my fps by turning off reflections but it still feels laggy, if there's anything else I can turn off to reduce the input lag (you mention mouse delay without seeing hit in fps) that would be great