nostr:npub1z2qdmfzhs2uwg8kmsh37xavt2hq48gch63e787ggd3s6mt8waxgsxu3yuf 
It opens instantaneously for me using Firefox on Ubuntu.
nostr:npub1ez3yya8tpgge7lk4jq2zxz0cj3d2mcgev9mffd4ec7tfy84hre4suexnxl