Stock settings will do that. Unfortunately the damping adjustments on the standard forks are pretty crude. Forget a click or two here or there ... you basically have 'on, off and somewhere in the middle'.
The choppy ride is due to harsh high speed compression damping and that's not something you can affect much - if at all - with the adjuster. It's due to the basic design of the valves inside the forks. Lighterweight fork oil (2.5w - 5w) can help a bit. Depends, though, on how heavy you are.
I got best results with Silkolene RSF 2.5w oil, preload on 2 rings showing. Compression adjuster 12 clicks out, rebound 4 clicks out. I'm about 14st in kit.