Sounds like it's time for a full manual
VB and a nice shifter!!!
You can manually shift it with your column shifter, need to hit manual 1st/L before it grabs 2nd or Drive, so start in N, and in one quick motion shift it down the L. Then it will upshift to second immediately when you bump up to 2, then upshift to 3rd immediately when you bump into D. You'll need toggle switches for lockup and overdrive.