I noticed similar problems on Halflife Alyx. I’ve had to turn my Catayst setting down to halfway. I had it on max 10 previously. I’m running v22.214.171.1240 on Ryzen 5 3600 with 16GB@3600 DDR4 on a MSI B450M Mortar Max and an Asus GTX 1070 8GB (using VIVE v1 tracking LASERs)
I did have to cold start the HMD, and restart the service several times to get to that point, but I was able to turn up and on a few of the 1070’s defaults which I think improved some of the rendering a little (Warning!: potentially anecdotal BS).
I’ve noticed since the latest update, I’ve had a higher incidence of stuttering on first VR experience after power-up. As standard; I’m now testing the HMD before I start a session. I can usually tell without even wearing the headset. I just dangle it so I can see into the eye-pieces from about a foot away, and I pan it right to left. If stuttering/juddering; it’s usually obvious and so I do a service restart.
Does anyone understand what is actually causing this phenomenon? I get the feeling like it’s somehow being caused by a process or interrupt somewhere, doubling up on itself. At the very least I would expect that the PiTool should be able to detect the issue and either self correct or as a minimum, indicate awareness of the problem to the driver or even the user.