Update to MacOS 10.15.6 full scanning is extremely slow scanning on version 188.8.131.52
A normal full scan would normally take about 5 minutes on my Late 2016 MBP. Since the MacOS upgrade the scan is only about 40% complete and has been running for 25 hours. Each file is taking about 5-10 seconds to read and the scanner is using 100% of one CPU.
Also, since 10.15 or so, scanning would occasionally completely hang on one file using 100% CPU.
This new issue is always reproducible.