I'll up the pet value increase next update. It's a shame you missed all dialogues which start triggering at 40.
Also, how did you finish that stage in less than 30min? Must be the titles then, what are the basestats and level of your Sayaka?
Here are my Sayaka's stats at the beginning of the Pet dungeon at Level 52. She has every single title in the game except the Omorashi dungeon ones because I skipped that one.
I didn't miss the conversations, I ofcourse spent time after beating the dungeon wandering around to make sure I didnt miss anything while intentionally letting the pet score build up so I could see everything, etc. I really liked it, probably my favorite dungeon. The fish shaped gag was a nice touch for the catgirl costume, was a bit sad the puppy didnt get a bone shaped gag to match but I guess most of the moves involve using their mouth so it wouldn't make much sense. I think the only thing about the dungeon that I feel was missed out on was having mental and physical changes be separate. So you could have the girl get fully dressed up as a pet but still not be on board with the idea and vice versa. The conversations wouldn't make any sense if that was possible, so fair enough.
Final boss was appropriately difficult, Sayaka was able to carry against the first 2 phases. Final phase was left up to Madoka putting her 'always available' buff to good use since Sayaka was severely hampered by the transformations. Against all 3 bosses I stacked buffs on Sayaka and debuffs on the Boss in the early turns. Kyoko used Bloodletting on every single turn she could. Madoka used her buff anytime she was unable to act, and used Holy Shot / Bite / Kick whenever she could.