VR practically unusable since 440.44

Since driver version 440.44, using VR is extremely unpleasant. I’m not entirely sure what is wrong, but something is not right with motion. It might just be a delay of some sort, but I have no idea how to judge that. What is clear is that it causes dizziness in minutes. Since this is the driver version that introduced a fix for G-SYNC causing tearing (which affected me), it may have something to do with that. Note that this happens with in SteamVR home, which consistently runs at frame times of around 7 ms, so it is not a performance issue.

I also tried the recently released Vulkan Beta 440.48.02, but this driver is the same.

Same issue with 450