I gave it a 2 stars because I saw few other shows that were worse, maybe enough to count them on both hands, but still this is without a doubt one of them.
The lines are horrible, it feels like it was written as a kid's school play, the acting is wooden at times (maybe because of the lines they have to work with), some of the actors were not cast well for the said roles and they simply do fit in the show. (not saying they are bad actors, they just don't fit in the roles, like the king for example... and if you add the cringe lines on top of that it just turns this into a cheap parody without jokes).
I've played all the Witcher game franchise, I've watched the show as well, and I must say I did not expect something this bad receiving a green light to actually enter production.
The bad "CGI" and cheap props used in this show, I could maybe get past, but the story telling itself, the lines, the roles assigned to some actors and the purely cringe moments made me stop watching after half of the first episode just to come here and complain.
If you're one of those that don't about any of the aspects mentioned above, and still loved the show, then I am happy for you, and I am happy knowing it ended up reaching someone that appreciates and is not just a big middle finger to everyone loving the Witcher universe, because to me that's all this seems to be, a middle finger to the fan base.