You need to adjust CV2 for you start voltage. When you go to notch 1 on the controller the loco should just move at a crawl it sounds to me that you have to high a setting on CV2 try giving it a value of 0 or 1 and see what happens. If the loco does not move then increase the value by one keep doing this until the loco starts to move at a very slow crawl. As for top voltage I very rarely bother with this as I just keep notching up until I get the speed I want. Your top speed voltage is controlled by CV5.
The lights on the 201's ain't the problem its the circuit board there ain't much you can do about this its a pain it the backside I have 10 x 201's and there are all different when it comes to the lights. The one that I fitted the TCS 21 pin decoder to and made adjustments to the circuit board works great the only other one that works is 210 with the sound decoder fitted. I spent an hour one day fitting and testing the sound decoder to all my other 201's to see if the lights were working on them and only 222 did everything it was supposed to do.