Question: Why is WinUI 3's scroll experience is far from WinUI 2

[dylech30th]

Open both WinUI 3 Control Gallery and WinUI 2 Control Gallery's Settings page, it seems that the WinUI3 version only got 30fps while the WinUI 2 version has an excellent scroll experience with an adaptive framerate that correlated to the screen's refresh rate, this also happens in my own app built with WinUI 3. If you are using an high-refresh-rate screen, the difference would be even more obvious

[LasmGratel]

same issues here while on Windows 10 21H1 and Windows 11

[kmgallahan]

Dupe #2513

[dylech30th]

Thank you for the reply, I've just confirmed that the scroll experience in Windows App SDK 1.0 is good only if you are using the mouse wheel, it seems that the framerate is still locked to 30fps when you are dragging the slider of the scroll bar instead of using the mouse wheel, and that is not gonna happen in WinUI 2

[dylech30th]

You can find the videos here and the difference is so obvious
ListView Scrolling in UWP(WinUI 2.6): Video link
in contrast to
ListView Scrolling in WinUI 3 Desktop(Windows App SDK 1.0.0 Experimental): Video link

[sylveon]

#4690

[dylech30th]

I'm aware of that, thanks for the reply

[StephenLPeters]

@Austin-Lamb @bartekk8 and @RBrid FYI

[marb2000]

I'm just curious if this is still an issue. I'm testing the latest WinUI 3 and 2 Gallery and they seem very similar to me. But perhaps I'm wrong. @dylech30th, @sylveon any updated feedback?

[sylveon]

I just tried both side by side and while it doesn't appear that the WinUI 3 gallery is capped to 60fps anymore, the WinUI 2 gallery still feels smoother to scroll through.

[lhak]

I can confirm that scrolling in the "All Controls" section of the winui gallery is extremly sluggish compared to the winui 2 version.