I recently shifted over from my old gaming laptop to a desktop I built last year, and that is when this problem started. I'll be playing the game, and randomly the camera will just swing wildly like it just got 2-4x more sensitive. Maybe more like 10x more sensitive at times it seems. I'll be running around or mounted or doing whatever, and suddenly instead of rotating proportional to my mouse movement, the camera will swing super fast. It might cause an entire rotation of the field of view vs 1/8th of a rotation, for example. This happens instantly and is very disorienting and then it goes back to normal. It's as if the the sensitivity on my mouse just multiplied many times for a fraction of a second. I have noticed no consistent gameplay pattern for what triggers this. It seems to happen randomly.
Here are all the details I can think of:
Old laptop:
Clevo P650RG
Windows 7
Intel Core i7-6820HK
GeForce GTX 980M
Samsung SSD: 850 EVO M.2, 500 GB, SATA3
48 GB DDR4
New desktop:
Windows 10
AMD Ryzen 7 5800X
GeForce GTX 1080 Ti
Samsung SSD: 970 EVO Plus, M.2, 1 TB, NVME
32 GB DDR4
Troubleshooting I have tried:
Disabling all addons. Results: no change. Problems still persists.
Putting all game settings identical between the two machines. Results: no change. Problem still persists. The new desktop was running on Ultra video settings, but I turned them down to Medium like on the laptop. Also set Planar Reflection Quality = 2048 and Particle Suppression Distance = 100, because that's what they were on the laptop for some reason.
In Camera settings, both computers were set to First Person Rotation Speed = 24 and Third Person Rotation Speed = 60.
Starting eso64.exe directly and logging with my ESO credentials vs launching through Steam which then launches the Bethesda launcher and automatically logs me in. Results: no change. Problem still persists.
My old laptop ran the game in windowed mode at approximately 16:9 1080p (minus the Windows taskbar). The new desktop runs windowed at about 16:9 1440p (again, minus the taskbar).
I use Razer headphones, and I have actually run into problems with ESO interacting with the Razer software before on the laptop.
See this thread. I had disabled some Razer services running on the computer and got that exact problem, and it went away when I reenabled them. However, I do not have any Razer software installed on the desktop, so I don't know how it could be involved here, and I suspect it is not.
I'm utterly lost on this. I've tried to control for every variable between the two computers. My gaming mouse is set to the same DPI. There is none of this violent, random camera swinging when I boot up ESO on the old laptop using the same mouse and keyboard.
Let me know if you need more information from me and if you have thoughts as to what might be causing this problem. Thank you.