After run the nRF Connect on my PC the CPU usage becomes very high (over 95% on the WMI provider Host service), then the PC does not performe any other task.
When I close the application nRF Connect the WMI disappear (0% CPU usage).
Configuration
nRFConnect 2.3.0 or 2.2.1
Windows 8.1 Pro 64 bit
Intel core i3-4005U CPU @ 1.7GHz, 4GB RAM, Intel HD Graphics Family