I have a couple of thoughts for you:
1) Smaller battery pack(s). That would lower the power you're putting to the motor and will reduce your rolling issue
2) Add some expo into the throttle, will do the same thing.
3) Smaller motor, though to do so will mean probably having to replace the prop with something of either less pitch or diameter to keep from overloading it
I personally would start out with option 1 as it will also reduce the brightness of the lighting. To me, the picture has them looking too bright