I use a Razer keyboard, Naga and Orbweaver. I was having some cam problems and the old windows 8.1 fixes were not working. I contacted Razer and they told me a few fixes. The thing that fixed it for me was turning the Naga polling rate to 125hz. The problem I had was losing my dpi and the camera spinning pretty quick. Pretty sure it had something to do with my Orbweaver and how the camera works in ESO. Best of luck.