Speed cap is Faster(2)

Agreed - it prevents fast-attacking classes from completely being overpowered at bosses. Any higher and LB/RK Heros and Night Lords (esp Dexless ones, whose claws are faster than main-stream claws) would have even more of an advantage against slower attackers. It's fine as is, Faster (2) is more than enough to suit the needs of any player. Fastest (1) would be tolerable, but anything beyond is just too much.

From what I've seen, I think the NL's, etc, were supposed to do lots of damage, because they were made that way supposedly. Sure, they're way overpowered to the point that no one takes certain classes anymore, but if that's the way Nexon designed them...
Also, 1h swords, daggers, and some faster equips can't hit above 2 with the cap. And if I remember right, KMS has no cap. (And probably part of the reason they made it so far fighting PB without all that attack gear that GMS has. )