I did get the elevated privileges alert for the Super program. It started maxing one out of 4 cores at the end of the installation when it said it was going to check for installed programs or sum’ping. I terminated the installer after two minutes.
I disabled the sandbox prior to install. The only flagged event was the update check for Super, (which happened right at the start) after which it took ages. [Lag from its site responsible?]
The cdripper then took more than 4 mins.
So I started comparing performance with CIS 3 (perhaps incorrectly) I guess I need to try an install under several different conditions sets & compare. Clearly something else is going on here, in comparison to your findings.
Will have to dig deeper…