>> "Why does copying this image freeze the program for 30 seconds? Lol that doesnt happen under Windows."
> If that was also addressed to me, I will make an attempt at defending my proposal (consider the correction I added above as part of it).
Replying to myself. One clear weakness of my proposal would be that it might not work well with select and middle button paste, as selecting is something you do more often than copying (again, that would need testing to be sure). I would give it more chances of working with drag and drop (which I personally prefer over middle button paste, but I greatly fear I am in a minority here with that).