For those who don't want to do the boring and mundane GW path, which I would say is the vast majority of players, then it is a sexless game.
It is "slow and boring" though when pretty much every other game has had substantially more sexual content by this point in its lifespan. It's like if a burlesque club opened up next to a brothel; everyone's going to prefer going to the brothel because you get actual sex and you'll be lucky if you see a nipple at the burlesque club.
You can still have those fun, erotic, teasing actions in a VN and deep, meaningful plot development, but it doesn't have to take this long.
It's not the meticulous nature of the render creation that is the problem, it's that each event gets way too many renders. Every day could probably be very easily done with just 1000 renders, and considering they did a 515 render update in around 2 months, a full day of 1000 renders could probably take 4 months cutting the time down to around 5-6 years for completion.
No it won't, not unless they commit to keeping each 1/3 of a day update to just 500-600 renders, because if they start getting into the 1000s for each 1/3 day, then this game will never be completed.