Really glad to hear you're into the game overall Archendrus, and thank you for your useful input on combat! :)
Combat is very difficult, you're definitely not alone on that. Even I still lose a battle sometimes, and I designed the attack patterns myself, hehe. I agree it's too punishing at the moment for the tutorial area of the game and we'll do a major rebalancing for the next build to continue trying to find the sweetspot.
In addition, since all enemies have each of their attacks and overall patterns totally customizable by swapping around some variables, ultimately we'd like to have an assortment of difficulties, with higher difficulties keeping shorter windows of reaction to maintain super challenging combat for those that like it.