Ordered some Parts...Whats should be the Outcome?

[scootin150]

05 United Motors 150cc-Stock
Well to start off im a big guy 250lbs to be exact and noticed my scoot was not getting into the rpms that great riding around town which was limiting my top speed. I Ordered a performance filter, HOCA 1500k Torque spring and 10g NCY rollers to replace the stock 13g. Should this minor cvt change help or hurt my topspeed and all around performance? I noticed on small hills my rpms would drop to 5k. Just looking for input from ones who have played with or have this setup. Bike has straight pipe (temporary) Race CDI and jetted btw. Thanks for any input