You should @ the person who created the compressed version (since that's clearly the issue in the message you've pasted here), rather than just posting your error to no one in particular. That way the compressor will be notified and might be able to help you out.
Agree with Sue's expression being off after putting it faster, although I prefer that kind of speed penetration specially in characters like Sue, rebel and open minded. Those things should be considered from the start. Don't you agree that the sex penetration was very slow in this update? In her first sex scene (chapter 2) was pretty fine.
Yes, I agree. IIRC in Chapter 2 they seemed fine to me. Animations are tricky enough as it is, so I applaud devs who can make different speeds of them. (And I don't just mean having different speed options during a single scene, but as you said: having one girl slower and another girl harder and faster.) However, if you watch various levels of speed in actual porn, you'll see that expressions don't just look the same but faster.
There are definitely some games (like
My Pleasure, for instance) that are major offenders of mismatching supposed speed with what the characters describe. It's irritating; just don't describe it as fast if it's super slow. (One example of this type of thing done very well is Super Alex and
Amnesia. That guy is extremely skilled with rendering and animation.) Even worse, some games actually have the characters say it's now going "harder" and "faster" and there's almost no increase in speed
or visible intensity. It's immersion breaking, to say the least.
If you really want to make faster animations, you'll need to re-render with a mind toward faster movement on most of the body but slower, more normal-looking expressions in the face. In fact, often the facial expression will either not change all that much during the animation (because they are "overwhelmed" or whatever throughout the whole power-thrusting) or there will be a very sudden expression change (as the MC bottoms out in her or something, for instance). This is actually a big part of what makes something like animating so challenging and so artistic in nature. It's far more complicated than just adjusting framerate.
Now, of course, I don't mean any of this to take away from Oppai-Man or the work he does. He's very talented IMO: his renders look great generally, the sex scenes are very erotic (minus the weird MC expression stuff), the writing is done well (from farcical to moving), and the story is interesting (if albeit
yet another college setting game). I'm only saying that if there is going to be such a focus on varying animation speed, it should be done well and not just taking an existing animation and using the fast-forward button. The same goes for anything else of this type: if it requires very involved nuance, it should either be done painstakingly or avoided altogether.