I got my XP a few days ago, this is my 2nd ebike. My first is the Ecotric 48V folding 20 inch. As close to an apples to apples comparison as I can get. This XP wants to run at 10 or 11 miles per hour and then PAS 4 and 5 do nothing. PAS 3 is top speed? I want its power spread out all the way to...