In reply to Juergen Klein.

It looks like with all these smoke and mirror devices, devised to somehow satisfy the Google demand for some sort of speed/performance nirvana, that we have ended up with a jungle of Heath Robinsons. AI, complex caching that gets in tied up in a knot and, many other things that the human race doesn’t really need, where basic functionality would suffice. As you say Juergen, if you know what you doing you will size your media files correctly before uploading.