Last night I took my Lx150 out for a riding and I gave it full gas in my "personal circuit", a twisty road next to where I live.
When I ride the Vespa fast I ride differently than I do when riding fast more powerful motorcycles, e.g. I enter corners faster, brake harder, lean less and open the throttle as quick as leaning allows, trying to keep revs up all the time.
This is great fun and since the speed is low, 90 to 100 kph, it's even always safe, but after a while I get seasick - which is fin too because I was a sailor and I actually never suffered from seasickness aboard

So am I the only one feeling this way?
The only other motorcycle that ever caused seasickness while riding fast was the Triumph Street Cup, but that was a problem of throttle response and transmission smoothness.