I watched all of 'The Witcher'and one does 'warm' to it. Off putting things? As someone who doesn't read the books or play the game, it took me till ep6 to realise how the timeline was being played out .
Also, there's not the world-building you get from 'Spartacus' or 'Game of Thrones'. It felt aloof to me. Finally, I wasn't sure why it needed pop culture references like 'gross' in this show. Didn't help in making that world 'exist'.
But, I will say the one on one sword play was second to none! Really top notch stuff. So much so, I watched some of it 3 times!
Hope it improves .
Lastly, I think Cavill took a gamble trying to show he can be leading man material and it just about paid off. Whilst he's not super engaging, he's still the best candidate, out there , to play 'Superman' on the big screen!