Thank you. 
Well, I DID of course save it as a gif first, and it was fine (though a bit big to my liking with 1.1 MB still), but no matter how fast I set the framerate in the rotation, most browsers obviously think they like it better when it plays not so fast in that parts and slow them down. Which imho makes it look not half as silly and thus pointless.
I tried saving it as .mov then, which allowed to play it at that speed, but played the entire thing at that speed. And still already had 16 MB.
I asked Ahastar, knowing he does the one or other animation occassionally 
and he said most codecs wont work with it because it must have a certian height / width for that, and made it a .mov that played right. But that had cut out frames, which again, made it look sucky.
The current format is the most basic avi that came with either my XP system or the really ancient PhotoPaint. It has no compression at all, so if it doesnt play, dont ask me why. And no, I am not happy with that format, and I didnt chose it, it was just the only thing that worked. If anybody can make it a working .something file that compresses it down to the, like, 200kb it should actually need, I more than appreciate.