optimising nfs and nfsd

Hello list,

The nfs instructions in the handbook are rather terse.

I know there's been lots of new development with nfs.
The zfs property of sharenfs, version4, KTLS etc.
The "readahead" property for clients.

Would anyone here please point me to up-to-date
resources? My context is nfs server exporting
via sharenfs with freebsd14, -current and debian-based
linux clients on a gigabit LAN.

Some workloads are very interactive. Some are not,
such as backups. It works, but it maybe can work
better.

Thanks!
--