I am very heavy so I can't hit more than 60 in flat ground with no wind. But down hill I can reach top speed of 68, it's limited by pully ratio. With wind facing me I can only hit about 55 on flat ground. I don't think you can ask more from a 168 cc motor on a scooter. I used to have a Aprilia Sport City 250 ie and it topped out about 15 mph more with same conditions, and that was a 249 cc if I not mistaken.
