I don’t think we did anything, so no thanks are necessary.
The x-nf-request-id you sent took us 261 milliseconds to serve according to our logs - not what I’d call slow to serve. However I do see a handful that took 6 seconds to that domain, which is absolutely super slow. Those are related to the issue in this thread which as you’ve experienced is rather intermittent:
We’ll follow up there once we get a fix out.