Firewalld занимает много времени

Я обнаружил, что firewalld занимает много времени в Fedora 24:

 # systemd-analyze --no-pager blame 12.051s firewalld.service 7.613s dev-sda8.device 6.347s akmods.service 5.832s dev-sdb3.device 3.956s systemd-udev-settle.service 3.561s ldconfig.service 3.435s lvm2-monitor.service 3.037s upower.service 2.983s lm_sensors.service 2.895s systemd-logind.service 2.850s akmods-shutdown.service 2.847s gssproxy.service 2.847s sysstat.service 2.841s rsyslog.service 2.801s rtkit-daemon.service 2.695s systemd-hwdb-update.service 1.988s dnf-makecache.service 1.783s systemd-udevd.service 1.777s systemd-fsck@dev-disk-by\x2duuid-623D\x2d6AE0.service 1.705s systemd-modules-load.service 1.584s home.mount 1.472s fedora-readonly.service 1.457s systemd-tmpfiles-setup-dev.service 1.456s proc-fs-nfsd.mount 1.448s primage.mount 1.209s plymouth-start.service 1.144s systemd-fsck-root.service 1.132s abrtd.service 1.050s systemd-vconsole-setup.service 1.040s systemd-sysctl.service 

Критическая цепочка следующая:

  The time after the unit is active or started is printed after the "@" character. The time the unit takes to start is printed after the "+" character. @29.297s └─ @29.296s └─crond.service @29.186s └─systemd-user-sessions.service @29.060s +100ms └─ @29.048s └─ @29.048s └─iscsi-shutdown.service @29.047s └─ @29.046s └─NetworkManager.service @28.444s +601ms └─ @28.434s └─firewalld.service @16.383s +12.051s └─dbus.service @13.557s └─ @13.531s └─ @13.531s └─dbus.socket @13.531s 

Что я могу сделать, чтобы сократить время запуска firewalld?