Agreed, good post. He just needs to work on his decision making and execution of the final pass to be a very good player, as you put it. But the encouraging thing is that he's showing a lot of promise in the deeper phase of play, which is normally a problem for us. And as a youngster at Porto, Dalot was known to be very good in the final third, so hopefully with a bit of fine tuning on the training ground, he can improve on things that were seen as his strengths at youth level.
And regarding his pace and acceleration, he seems to have matured physically since he arrived as a teenager and does seem quicker now.