Fixed now, see last post...
I spent a lot of money of a monster gaming PC (Corsair One i160) with Intel i9-9900k and nVidia RTX 2080ti together with a Rift S. Last night I spent time setting it all up and was so excited to try the Rift S, however I have to say I am very very disappointed with the performance of the device. I am getting very bad head tracking, when I turn my head left/right I get a judder, it is not smooth like it is with the PSVR and the first Rift.
I have been googling today and have managed to find some information such as disabling power down options in control panel for the USB 3 ports and making sure drivers are up to date etc, and also removing the RGB lighting software that Corsair install. I have not had a chance to try this yet, I will try tonight, but to be honest I very much doubt any of these things will work and really we as consumers should not have to do all this anyway.
I am one unhappy customer.