I finally gave this a lot more time than I did before.
I still think there's way too much menuing but you already know that, some small things related to that though:
I still thing the action system is really nice.
Why the pause screen on tutorial start? Seems unnecessary.
The Fiend Slayer smugness level thingy when entering the dungeon would work better as a stepped slider than a row of radio buttons.
Talking about that UI, the jump from respect 4 to 5 seems pretty large.
The dungeon button at the bottom sticks around when you're already on the dungeon screen and when you click it it just takes you to the same screen but without the button.
Now the gameplay. A big part of your game is of course to go fast but there's quite a few things that just don't work well for that I think and slow you down constantly. First of, anything involving crates. They're just too small. Bouncing on them is finnicky as well as picking them up. Even when I was sure I'd hit one I'd still often find myself in lava or slime. They break momentum and that just isn't much fun. When picking them up I found myself often just slightly out of range or slightly off-angle. Just make the collision check for that a bit bigger. Same applies to levers as well. Those should also be more visible, larger and more contrasting against the walls ideally. I also never really knew what a lever did since they're often away from whatever gate they open. Maybe have portal-style lines on the ground and walls. He Who Watches does it in a more fantasy style just fine so I could see it working here too.
Talking about levers, just let me use left click to interact with them, same with milk. I don't see a reason to have left click to pick up stuff an E to interact separate inputs.
I think the default choice of seals is terrible. I found myself soft-locked in the dungeon without any mana regeneration several times before I realized it's the mana regen -1 seal. I thought it would just slow it down, but there was just none. At least that one should not be default.
Related to that, the layout I started to get stuck in in Babysteps++. The jump in difficulty from Babysteps+ to that is just insane. Needs smoothing out. What made it worse is that I had the bright idea to waste all my gold on costumes instead of unlocking bunny girls so I'd go into those suddenly too hard dungeons, often not even find guests and just run out of time (usually because I got stuck with no mana) or leave. This lost me money to the point that I couldn't unlock anything and just started a new save. How do you even lose money? Is there some daily fee? Does not finishing the main objectives lose you money? Couldn't make sense of it.
Oh yeah, make flower pots shatter when I throw them.