Haste and Dual Wield question

[Rejuvenation]

More attacks per few seconds is equivalent to a lower delay...it just depends on the frame of time you are going by, nobody is wrong. 20% haste isn't 20% delay reduction is what you are trying to say.

The game truncates delay values. An equivalent delay of 14.49 is 14, while a delay of 14.51 is 15. This is where larger delay weapons would benefit more from haste than a low delay weapon as each percentage of haste will be more significant.