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.
The CD ripper installed pretty smooth. It stalled for 5s maxing out one core but that was as rough as it got. The D+ logs show it was looked up in the cloud and found safe.
If you want the old behaviour you have to disable the sandbox. That is done under Execution Control Settings by unticking "Treat unrecognized files as ".
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…