Of course, there are sword moves that can deliver hundreds or thousands of strikes in a second, but those generally belong to advanced swordsmanship, with a high entry barrier and poor effectiveness, only useful for showing off or clearing small fry.
If you're dueling with a swordsman of the same level, everyone's techniques actually become quite straightforward and plain.
So, the real effective sword speed statistic should be measured under the premise that you can still maintain perfect control over your strikes, but precise strikes will inevitably slow your sword speed down.
You might be able to swing dozens of times in a second if you swing randomly, but if you take it seriously, you might only manage a few strikes per second. Considering the complex factors in actual combat, being able to slash once or twice in a second is already impressive.
