NFS is much slower, maybe unless you deploy it which RDMA. I believe even 4.2 doesn’t really support asynchronous calls or has some significant limitations around them - I’ve commonly seen a single large write of a few gigs starve all other operations including lstat for minutes.

Also it’s borderline impossible to tune nfs to go above 30gbps or so consistently, with WebDAV it’s a matter of adding a bunch more streams and you’re past 200gbps pretty easily.