CBR 954RR SC50 jerks and stutters in the low speed range

Hello, yesterday after a long online search I finally got a SC50. The motorcycle was visually very well there with its 35k mileage in contrast to other online ads. During the test drive before the purchase the following problem occurred. I had to pick the motorcycle out of the housing settlement first to come to the country where I could heat a bit. In the city traffic it is noticeable that the Honda in the low speed range (1000-300/min) moderately strongly ‘jumps’. I think that she doesn’t go smoothly forward but rather jerks like a car that is about to choke off. From 4000/min the motorcycle catches itself and pretends that never had been anything. I didn’t think much about it at first because I still wanted to test how the motorcycle behaves when there are more turns on it. Arriving on the country road I then gave more stuff and was thrilled. The motorcycle did exactly what it was supposed to do. No swallowing, no stot tern. Ordinary clean acceleration as if never had been anything. Again on the way back to the seller I had the same problem. With every start, slowly rolling around without a pulled clutch it stutters and jerks. Whether it was the first or second gear. The machine makes life difficult in the lower speed range. Back to the seller I then set him to talk. He had assured me that this stuttering and jerking of which I am speaking is completely normal with the machine. Grades on 4-cylinders and motorcycles with such a high performance and power. They are probably not designed to drive around with such low speeds and revolutions. He meant that it can be that it is a bit more doller than it should, but that is probably due to the age and the mileage of the bike. Since I have no idea of motorcycles and I am technically not well placed I accepted it so. I still tried to persuade him to feel guilty about it. I took the bike with me and drove home 80km. The best ride of my life! I love this bike. Only the problem with the lower speed range makes me manage. Can an expert help me there? Something like that already experienced or seen? Thank you!