Jerky head movements

This is my first time using VR, so maybe my expectations are unrealistic, but here’s my issue: I’m running a PSVR2 to the PC adapter and connecting that to my RTX4090 PC using a DisplayPort 1.4-to-USB-C/Thunderbolt 4 cable. I’ve confirmed the thunderbolt port on my laptop does integrate directly with the GPU, so this shouldn’t cause an issue. But I keep seeing jerky motion when I look around or use the controllers. I’ve messed with the refresh rate, turned off motion smoothing and set the resolution per eye to 68% but nothing has helped. Any ideas?