I was not expecting the woohoo! when you switched modes. I did the same on a recent ride. I was riding by the coast on a straight road at a fun pace in Eco. I was right at the 5k rpm power band and switched to sport. Since I didn't have to close the throttle it did a sudden pull. My hands were on the handle but not tight. Nothing happened but it was very exciting. Fun bike. It is a very good bike, and I will only say "for the price" because it has some quirks. But everything else I think is on par with the big bois in the same class of bikes. Take away the brand name and it is purely a well made motorcycle with a lot of thought in how all the elements come together. But truthfully even Ducatis, have quirks.
There's such a difference between sports and eco mode and when I come out of second gear on both modes. My front tire comes off the ground in sport mode but not in eco mode. I can make a video or at least have somebody do a video to show it.
Few things worth noting: Eco and Sport mode, there is absolutely no difference. This is a sales gimmick Heat from the motor blows on the rider It is almost impossible to find shops to work on these, unless it is the dealer you purchased it from or a CFMOTO dealer.