Users are saying that after they installed the 10.15.7 update, the
accountsdprocess runs up to 400% in Activity Monitor. This slows the Mac down to a crawl and leaves the system in a high CPU consumption state. This causes the Mac to quickly drain the battery, heat up and kick the CPU fans into high gear. Another process that could be acting up is
This comes after I reported major problems with the macOS Mojave 2020-005 Security Update that came out on the same day.