This is a known defect with the Wiser devices. There are a number of SENSE users with this problem. You can enter a ticket to: wisersupport@sense.com Reference this forum post.
Also there is a ‘Wiser forum post’ with users who have noted this same problem. Build yourself an account and add your comments to the manufacturer’s Schneider Electric Wiser Forum:
Wiser X Series Plugs and Switches With Wiser Energy Shows Clearly Wrong Power Spikes ! - Communities