Here's the performance of the #visionfive2 nvme.
Based on what I've read, these numbers aren't as good as they could be. But they are much better that what I was seeing on the micro-SD card, like 8x, so I'm quite happy with it.
This computer now has 8GB of RAM and 512GB of fast storage. Anything I do with it is going to be CPU-bound from now on. Realistically, I don't know what I'm going to use it for except as a toy, not much different than the Raspberry Pi in that respect.