Override

The ISA sign is maintaining an Override repo of packages.

These are packages that are named the same, or conflict with packages in RHEL, but have been compiled with some type of optimized flags or features.

These packages are expected to be maintained and have security, feature and/or compile-time options updated.

The extras-common is enabled by default. So you should just need to run

dnf install centos-release-isa-override

dnf install https://mirror.stream.centos.org/SIGs/9-stream/extras/x86_64/extras-common/Packages/c/centos-release-isa-override-9-2.el9s.noarch.rpm

After you have setup the repo. You can list what is available.

dnf --repo=centos-isa-override list available