what settings habe you changed, you need the pole count to be right and your whatts set to shat you like , maybe 200wthen it should be less agressive, If you add the aux swith it makes changing assit levels on the fly so easy.
everyday commuter is a khs with 1000w front hub 40amp grin controller 16p4s
trail bike is a Norco with qs 205 5t with 120 amp Kelly controller 20s5p
first build rear 1000w Giant with grin 40 amp and 14p8s
newest is custom frame qs205 5t in moto rim and shiko d/p with Kelly 120amp and 22s5p