Perhaps, but I've spoken to people who use oculus rift and rift s, valve index, and htc vive, and all of them are having the same issue. I personally have an index, running on a 3900x, 64gb ram, a nvme ssd, and a 3090, so I know it's not the limitations of my rig.
Nope. It's not your rig. It's 100% on us to fix.