I first noticed the jumpiness trying those little games coming with the leap motion app home. Sometimes I also see it in the visualizer. Besides that I don't use any apps. I'm more interested in developing something.
Software Version: 3.1.3+41910 (updates automatically)
Firmware Revision: 1.7.0
Windows 10 Home on an Intel(R) Core(TM) i5-5200U CPU @ 2.20GHz
This capture shows how the footage itself can be pretty noisy: https://youtu.be/zmOCZYWfrAU. But I'm not sure whether that's the problem. I also tried to make a video showing the jumpiness, but you know what happens when you're trying to explain what's wrong... it never shows.
A bit off-topic, but is there a place on the forum where you can share suggestion and contributions? I've seen the developer forum, but it's mostly programming related questions there, not suggestions etc.