The CPU usage was 7% when it was idle. I opened it but it was still using a lot of CPU. Navigated to Alerts tab where it had and icon that indicated 5 pending alerts, and the CPU usage dropped to near 0% immediately.
My GlassWire runs at around 0% when idle. We’re testing a new version of GlassWire now if you’d like to join the list. Please email our helpdesk with “testing group” as the subject. Thanks for your report.