Very slow Fedora mirrors

[vgaetera (Vladislav Grigoryev)]

You can try this way:

sudo dnf config-manager --save --setopt=fastestmirror=True

DNF Configuration Reference — dnf latest documentation

fastestmirror - If enabled a metric is used to find the fastest available mirror. This overrides the order provided by the mirrorlist/metalink file itself. This file is often dynamically generated by the server to provide the best download speeds and enabling fastestmirror overrides this.