Attack Speed in Diablo 4 is measured in attacks per second. Weapons range from 0.9 attacks per second to 1.2 attacks per second:
Weapon type
Speed
Slow
0.9-1.0
Fast
1.1
Very Fast
1.2
Slow Weapons
Weapon
Speed
Crossbows
0.9
Two-Handed Axes
0.9
Two-Handed Mace
0.9
Two-Handed Scythes
0.9
Staffs
1.0
Two-Handed Swords
1.0
Fast Weapons
Weapon
Speed
Bows
1.1
One-Handed Axes
1.1
One-Handed Maces
1.1
One-Handed Swords
1.1
One-Handed Scythes
1.1
Totems
1.1
Very Fast Weapons
Weapon
Speed
Daggers
1.2
Focuses
1.2
Wands
1.2
One-Handed vs. Two-Handed Weapons
Similar to past Diablo games, in Diablo 4, Two-Handed Weapons are slower, but more powerful[1]. The opposite is true for One-Handed Weapons: faster, but less damage.
Xiphoid has been playing Diablo since the original's release in 1997. He made one of the largest Age of Empires sites in the late-'90s and early-'00s. Now, he runs MythicDrop.com, a premier Diablo 4 fansite.