Use zstd for revlog compression
Mercurial is able to use zstd to compress its revlog. This means less CPU being used to access the content of repositories.
If is available in core, but not enabled by default. We need to add this to the global config:
[format]
revlog-compression=zstd
We should also consider upgrading the existing repository using hg debugupgraderepo --run
once the config is set.