When was the last time you used firefox? There's been a ton of improvements in this area in the past few years (off the main thread compositing, async pan/zoom, e10s etc...). Scrolling is now smooth even when pages are loading, or there's activity in other tabs etc...
I actually use Firefox over Chrome on my xps 13, mainly because firefox's scrolling is considerably smoother than chrome (only beaten out by Edge)
Consider giving it a try again with the Firefox Beta (or wait for 57 final next week). I switched back from Chrome.
Already switched to quantum nightly about a month ago :)
Thankfully Quantum is silky smooth (been using it on the Nightlies and now the web developer edition).
That is because of smooth scrolling. I had to reduce the time for smooth scrolling to complete. I forget the key I modified in about:config.
Some people do perceive smooth scrolling as annoying, but for the most part what he's referring to was because of JavaScript ScrollEventHandlers being run in between the user moving their mouse wheel and the page actually scrolling.
This was fixed with Asynchronous Panning and Zooming (APZ) which moves the webpage and runs the ScrollEvents in parallel on different processes.
I used to be pretty fanatical about Firefox. But when it got so slow that simple scrolling started dropping frames, I had to switch.