well that is what i have been doing until now i gave the game a chance and i can say it won't get any bettre it will only get worse. 7-8 energy to advance one stage sometimes 3-4 scenes after one another 1 energy is 7.5 min waiting that makes 8 energy x4 = 32. 32 x 7.5 = 240 minutes that is literally 4 hours (one hour 60 min x 4 =240). and what you get for 4 hours waitning ? a princess sourrounded by trolls and each 8 energy throws a stone to the head of one goblin...
for the rest if you upgrade any girls the waiting time increases right now i have 4 girls, 2 i need to wait 15 min, 1 25 and 1 40 min. that is just crazy times because the 15 mins offer 270 and 317 cash, the 25 offer 338 and the 40 offers 714.
literally you play 1 minute then you go do other shit 40 minutes later you come back collect the cash and do 4 battles in arena (max 4 energy 1 energy every 10 min in arena) you can skip those battles and just get the cash and exp from it.
the pacing of the game slows down drastically after the first few lvls, just moneyhungry game made this time nothing interesting about it.