My experience is the same as chaze215 -
I started my wfo experience with some wood that could have been drier and it caused more smoke than needed. The next load of wood made things much better. I try to maintain a habit of loading the (emptied of ash and ember) oven a day or so after firing it with wood, packed to the max, and close the door. The heat (say 150 -200 when I do this) dries the wood out even more. For me, an ovenful of wood is right about what I need for a firing.
The nastier smoke lasts 20 - 30 minutes and then "clears up." I have also learned to use a lot of kindle when I start it. If I use lots of little scraps of kindle and pine strips from my wood supplier, then I have much more certainty of a fast, more complete fire and the smoke is minimized. Then, I do not load it up with too much wood too soon otherwise it is like starting over.
Now, if I could only control the wind. On a breezy day, the smoke tends to be blown down and around the yard instead of up to the sky. I close my door for 30 minutes because it can be gross in the yard. Luckily, it is really far from my unfriendly neighbors on the south side of the house.......