Seconded. On the rare times when I boot into the Windows partition on my laptop, the touchpad feels noticably better. Linux doesn't even handle all the quirks of my touchpad correctly so occasionally it'll get extremely slow and laggy, bordering on unusable! It's a Dell XPS-15 9510 and I haven't been able to solve this despite the laptop being out for almost two years. I've upgraded the touchpad firmware and the BIOS multiple times.