Anita much slower?

[Benny Siegert <bsiegert%gmail.com@localhost>]

Hi!

The Go CI has used the machinery at 
https://github.com/golang/build/tree/master/env/netbsd-amd64 (and 
friends) to build NetBSD VM images for years. Internally, this is based 
on Anita.
The code I linked uses NetBSD 9.3 and Anita 2.10. I have a pending 
changelist to update to 10.1 and Anita 2.15. However, for some reason, 
things run inside of anita.shell_cmd are much much slower when I try to 
run it.
It is so bad that a simple "env PKG_PATH=... pkg_add pkgin" takes 
between 30 and over 60 minutes. (60 minutes is the timeout.) After this, 
running "pkgin install" with a dozen packages takes 20+ minutes just to 
get to the "Do you want to continue" bit. This can't be right.
I tried on two machines: a MacBook M2 running Fedora and a very fast 
machine with NetBSD/amd64. Both were slow.
Any ideas?

--
Benny