Very Slow Performance

Yes, InDesign is extremely slow today 2020-06-19, almost unusable, even many months after being discovered.
The most worrying is that it seems that this bug was discovered in September 2019.

As David wrote 2019-09-04: “Almost every action from selecting objects, resizing objects, or moving objects comes with a really slow reaction time”.

Behaviour:

InDesign freezes, and my cursor starts spinning around (CPU jumps to 95-98%) for almost 30-45 seconds before I can continue with next command.
The behaviour is random, but when it starts working slow, then it continues. It usually happens when I open two InDesign documents at the same time (small documents).

I run InDesign 15.1 x64 from Creative Cloud, and Windows 10 Enterprise with 16GB RAM.

I hope Adobe fixes this very soon, as I cannot perform my daily work and my employer starts asking what is wrong with my deliveries.

Manuel