First, it's not fair to compare different Devs. Each of them has a totally different life and background. They aren't he same machines.
Second, quality is a matter of opinion. I think Stoper is much superior and much more detailed in his renders.
Third, the story of this game and its multiple options make it much more complicated to develop.
I have to agree. My first lousy steps in Daz3D are very, very depressing. I work on a potential female MC for a potentional VN. I didn't even set up a minimal scene just the char. Lighting set up is a nightmare (but this seems to make the difference between a nice render and an excellent one).
And if you read what can and must be done on postwork, oh dear! Not to forget the posing of the models! Yeah you can just put them in but fine tuning their gestures, where and how they look is quite a task. This takes a lot of time. True, if you are not a total noob like me, things go quite faster, but still it is a very big amount of work. Just putting in a model, post it, put some clothes on and render it, believing you will get something nearly as stunning as Stoper produces, you are totally wrong!
BUT! This is a big problem! On one side, the aspects for a dev mentioned above (including telling a story and thinkin about scenes work) and on the other side the pack of horny fappers can't wait to see often updates with many scenes because they really really like the art, story, etc. This can and will never work, as long you work as a single dev. On the other hand people playing the VN have to reduce their demands! It just don't work this way.
Otherwise, how do you explain that DecentMonkey delivers every month with a huge amount of high quality renders (1200 to 1400 per update).
I agree with you that the Monica MC in this game is really really hot. But I quit playing this game, way too much grind. And to be honest, the amount of renders is true, but not nearly the quality of Stopers' renders, and, many of those renders are exactly the same scene set up, just placing the camera in twenty different positions, so the real number of scenes he set up is quite lower.
BUT! Does it reduce the quality of fapping? Not for me at least! It does what it is intended to do. So Stoper could say, okay, I reduce the quality of my scenes to have a bigger output, because the fapping pack would do so even with way less quality. Neither that's his demand on himself, he wants to produce high quality content, neither the paying customers/supporters of him want this, because they want to see such excellent art, therefore they pay money each month.
So people should just take what they get, _for free_, and enjoy it. It's not the only VN out there, many other gorgeous female MCs are waiting out there to get depraved by the player, they are wating for you eagerly, go get them tiger!