Adding in my comments here. I love this device I really do but yes scrolling is just unbelievably bad. It's almost embarrassing. I've had to actually stop scrolling sometimes in fear of locking up the device.
Tried out both Chrome and the stock browser. Both exibit this behavior
Posted via the Android Central App
Can you check about disabling the apps I mentioned above?
Also, when you mention that scrolling is bad, All the pages or pages like this one, Android central forums?, I'm asking because my Galaxy Tab S 10.5 is almost a perfect Tablet BUT it has scrolling issues in this forum and XDA, maybe a couple of other pages, the only browser I have tried that doesn't show this so bad is the Dolphin Browser.
I think I read when I bought lit last summer that it was related to the Exynos chip and the way it handles the javascripts and other applets, I think that in order to run it smooth I needed to disable those and I think I did it and it worked great, but then something was missing doing that and I decided to put it back and deal with it.
Now, if the S6 indeed has the same issue then something's wrong with the Exynos chips and whatever it is, it hasn't been fixed.