Circle Strafe Stutter. WTH?

[NMD83]

[video="https://www.youtube.com/watch?v=Gvttm3JZg2Y"][/video]

Small back story.... I bought a 4k display and was not happy at 60fps. I returned it and have a 1440p/144hz on order. I'm messing around with optimizing some games using my 1080p/120hz for when it arrives.

I have been tweaking ESO and got things really nice then I noticed terrible stuttering when moving the mouse while strafing.

I tested in TF2 and Fallout 4 and sure enough its doing the same thing.

I've played with settings(res, vsync, etc), although not extensively yet, and nothing seems to change it.

I did do some small global things suggested for optimizing ESO on reddit....

• 
  I used a utility to "unpark" my cpu.
  I made some changes in the global Nvida settings which I reverted with the "Restore" button.
  The only changes I went back to where to add some DSR factors and change DSR smoothing to 15%.

2x SLI 980s, 4790k stock turbo

 

[NMD83]

OK well I figured it out.

I had considered it was my mouse, but was getting smooth courser moment so I dismissed it. I noticed in the video that all mouse movement seemed a little off so I dug out another mouse and tried it and instant fix.

I REALLY feel like a dumbass because it's a new mouse and I should have tried that sooner but I thought I knew better, lol.

Anyway, it's the new Mamba and like my Naga(out for RMA, reason I have the new mouse) it works wired or wireless. Well it appears the wireless on the Mamba is what's doing it.

Gonna do more testing but I think its also doing it some in wired mode, albeit MUCH less, because I have my other mouse at the same DPI and it seems smoother. But maybe I'm just moving it smoother because I like the grip better , lol.

[video="https://www.youtube.com/watch?v=Z2EPnOq309k"][/video]