Divinity:Original Sin Vs DD/BD

I have to admit, Divine Divinity and Beyond Divinity just... didn't do it for me.

It wasn't just graphics (though they didn't help) it was more that it felt very slow of a game. Of course the obvious comparison to be made is Diablo, Fallout, or Baldur's Gate which were significantly more fast paced. However, Original Sin at least appears less like Diablo and more like Dragon Age Origins.

Can someone who has played both the older 2 and the new one confirm or deny my observations? If I really didn't like the older two, should I bother?