TDW Ui mod "speed wobble"

After installing this brilliant mod, I noticed that when I'm following a course (set waypoints on the chart) the SM becomes unable to maintain the ordered course when I speed up the simulation time (such as when transiting from area to area).

The heading wobbles by up to +/-50 degrees and the only 2 work arounds ive come up with are

1) to set the time back to 1x speed and let the wobble sort itself out until i next increase sim speed
or
2) manually order "rudder midships" which results in the SM not following the navtrack anymore.

its becoming a bit of a bore.



Also, on a side note, as much as I like the new TDC and how it all works, is there a way of reinstating the "computer works it all out and you point and shoot" method without having to uninstall the mod?