Don't worry about narration voice acting, there's literally just 5 lines, I use it in the tutorial because there's a lot of people unfamiliar with this genre who play H games, so I wanted to be as clear as possible for them.
Regarding the game being slow pace, I would like to understand more of what you mean. Is it because the movement is slow? Is it because you have not reached the point you have full access to the kit? Are the enemies not exciting enough? The game gets quite hectic though, an example of what it looks like later.
Movement and combat both felt sluggish. I'd also like to know where you've heard that this type of game is 'unfamiliar' to h-gamers? One of my favorite games is exactly this style but more action filled and quicker. I think that it may step from this game's controls feeling not... 'tight' (pun unintended)
Also any voice acting in h-games is always unwelcome to me, but most of them have a slider or button to mute it. This whole thing to me just isn't appealing, but I'm not going to say the game "Bad" but that claims made aren't accurate and that I just generally don't enjoy it for a lot of reasons.
A fun fact, the game I was talking about actually really loving is how I ended up here in the first place and it's never made the claim of being a 'fast paced action filled' anything.
And as a final statement here, "Hectic" isn't "Fast paced" as both of those are different words meaning different things. You can have a "Hectic" encounter that isn't fast and a "Fast paced" encounter that isn't hectic. If it were me in your place, I'd sit down and do more research into what genre of games are actually similar to yours and see how fast they can be and possibly improve on the game's actual speed of play and combat rather than making it just general chaos with hentai thrown on top.
...Or just not claim to be "Fast paced". That's frankly the entire basis of me even coming by in the first place and then being disappointed. Without that one claim, I'd never have even tried it and just casually tipped my hat and left without a word.