I am making my way through Yakuza series right now and while playing 5 I realized that I am not that invested into the game’s combat, so I turned it to easy and that just streamlined the combat so much for me. I would recommend to maybe try Yakuza 0 on normal at first and then just switch it to easy if you feel like the gameplay might be dragging on.
Those games have a tough start, but if you can get over the initial hump then you can do pretty well in later level. That is until the final boss where shit hits the fan again.