Strength of Proc Spell Effect

[captnamazing]

If the Truncheon of Doom procs Tepid Deeds, and if Tepid Deeds' slowing effect is

Decrease Attack Speed by 32% (L24) to 50% (L60)

Will my level, as a warrior, effect the strength of my Tepid Deeds proc? For instance, I am level 60. Will the spell effect from the hammer slow my opponent 50%?