Virtual Dynamics Revelation-2 speaker cables

Just wondering if anyone know how long the break in time for the VD Revelation-2 speaker cables since I just plugged them in the system 2 days ago and how much improvement should I expect? As they are new...they sound abit conjested and not very dynamic/detail. I also have the Revelation-2 XLR interconnects but they are broken in as demo cables.
Thanks in advance.