I set the battle speed to 300+% and it became much more comfortable to conduct battles. Now I have to replay almost every battle. But the most important thing is that the game doesn't put me off yet; I want to keep playing. The most important advantages of the game, in my opinion, are: the combat, the development of the town, and the hero.
If the developers improve the game in the upcoming patches/add-ons, it might actually become a good game. The fifth installment wasn't great at the beginning either.