quicklook mojave zoom/scaling problems

Hi, I've just upgrade from Sierra to Mojave, I use Quicklook a lot, but I'm facing lot of problems with actual version, I find out now ALT works for rotate image… that's a pity, an almost never used new feature vs a very handy old feature… it seems consistency with Preview is more important than utility or usability…

The first problem is cmd+0 and cmd+9 doesn't work in full screen mode, sometimes, and many times , I don't know why (maybe because poor implementation) it doesn't work even in normal window, this drive me nuts every time, I used a lot Quicklook with ALT and full screen now is like half useful, is like the poor Quicktime X vs the great Quicktime 7 Pro.

Second problem when I want to resize the window, the cursor sometimes changes to "resize cursor" but it doesn't work, it makes a false click, either behind the window or just move the window around, but no resizing (cursor stays in "resize" pictogram)

Also, double tap with magic mouse makes a zoom in, if you double tap again, it makes a slight zoom in again, but you can't go to original size with that, very inconsistency.

Quicklook is a real mess in Mojave, I've filed a complaint, feature request and bug alert dozens of times about many subjects, never had an answer, and they moved to Catalyna (which I can't use by now) so I guess this will be never fixed, so I'd like to know if there is a way to revert this trhough terminal