Official comment
@Antti-K > There seems to be a persistent issue with Lenovo trackpads and scrolling in rekordbox. Customers reported this back in v4 and our engineers seemed to address it a couple of times, but then it comes back again a few versions later. From what they've explained, it's difficult for them to address, but they are aware of the problem and are working to squash that bug once and for all, but unfortunately they don't have a timeline for implementation. Thanks for your patience.