Please help
 

Please Help I have a new Gator 50 E3 50cc scooter factory variator 5gram rollers belt an clutch, I weigh 180 lbs it pulled decent 35mph up hill 45 to 55mph in straightaways an somewhat flat ground rpm's would run pretty high on top end 9k to 10k I changed variator to koso gates belt and glixal clutch 1500rpm springs tried 5,6 an 7gram rollers even switched springs to 1000rm an tried 5,6 an 7 gram rollers my rpm's stay good an top out at 8k but take off an top speed is slower everyway I've tried. I do have racing CDI an coil with ngk cr7hix Irridium plug installed before trying the cvt upgrade. I'm at a loss an bout to give up any advice would be greatly appreciated. Please Help