Created attachment 8653151 [details] scroll_no_paint.html I'm getting poor performance scrolling this page even though it's very simple.
This is fixed by turning off APZ. From the looks of the minimap, the displayport spans the full horizontal area (50,000).
Component: Graphics → Panning and Zooming
Looks like this is fixed now.
Status: NEW → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WORKSFORME
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