Just got my 72v 8000w Stealth Bomber Clone. Ran great on day one. Started messing with the SW900 screen settings (before I got the Sabvoton dongle) and now it will only go 7.5 mph. Starts normally but stops accelerating at 7.5 mph. Tried adjusting the settings but nothing seems to get me back to full power. Any idea what I did, and how to fix?