The 1s delay was added in the update to version 16 fw, where Family 8000 support was added.
bb480ca if_iwm - Remove 1s delay after fw loading. Can't reproduce issues on AC8260.
sys/dev/netif/iwm/if_iwm.c | 6 ------
1 file changed, 6 deletions(-)
Upstream: gitweb.dragonflybsd.org