It seems that people will always find something to complain about.
Geralt is a mutant with super human strength. If a normal human cat cut 2 pigs with not much of an effort, then it won't be a problem for Geralt to do in combat.
As for the horse finisher, please consider that he's galloping and the speed of the horse adds extra momentum to his swing, making it much more powerful, so yeah.
And for the books, Geralt kills with efficiency, he would go for the throat if possible since it's an almost sure kill.
And depending on the type of swing/thrust for the attack, a decapitation/dismemberment is very likely to occur. If a hand or some limb is in the way, off with it, it won't kill the momentum of the swing that much.
If we consider armor, well, he's a mutant with superhuman strength, so let's not try to justify things with "realism" as that is only applicable to certain degree.
Geralt is a mutant with super human strength. If a normal human cat cut 2 pigs with not much of an effort, then it won't be a problem for Geralt to do in combat.
As for the horse finisher, please consider that he's galloping and the speed of the horse adds extra momentum to his swing, making it much more powerful, so yeah.
And for the books, Geralt kills with efficiency, he would go for the throat if possible since it's an almost sure kill.
And depending on the type of swing/thrust for the attack, a decapitation/dismemberment is very likely to occur. If a hand or some limb is in the way, off with it, it won't kill the momentum of the swing that much.
If we consider armor, well, he's a mutant with superhuman strength, so let's not try to justify things with "realism" as that is only applicable to certain degree.