I Found as of today 220.127.116.11 and when asked to send a error report if failed have checked firewall and all is good for it to be send from my side. also I found malware scanner to be unavailable for some odd reason till i clicked on quarantine then came available this is before running any type of scan.
Runs fine on my pc without any slow down while scanning
Windows 10 pro x64
Os build 16299.125
1tb Sata hard drive
Processor Amd A8 -6410
If any more information is needed or some testing needs done feel free to let me know and iI will be willing to do all I can to help