I like the firewall - so I grabbed the AV and tried it. Everything looked good, halfway through the first full scan. It finished drive C, drive D, then got to my system drive, E. As near as I could tell, the problem didn’t start til it reached the Windows\system32 folder. Then, e v e r y t h i n g j u s t c r a w l e d along. This was about 1 1/4 hours into the scan.
Patience being a virtue, I moved to another machine, and did my little thing, and rechecked the progress before going to bed. Still stuck in the same folder.
After 4 1/2 hours sleep, I checked again. I couldn’t get past the login screen. Reboot. Got past the login, but everything just crawled along.
I’m waiting for the 2.0, for a retest.
I can post system information, if that would help. (Yeah, I realize that you’re close to releasing a new version, and this is probably old info. 
)