NEW 168482
Very slow composite (~300ms) when rendering images over 6K px in width 
https://bugs.webkit.org/show_bug.cgi?id=168482
Summary Very slow composite (~300ms) when rendering images over 6K px in width
Yuriy Nemtsov
Reported 2017-02-16 16:29:42 PST
When adding (16 in the test below) images that have a width and height of 6k px, and then scrolling the container, the scroll will be very laggy. Timelines show that Composite duration was about 300ms. The issue can be seen in the following jsFiddle: https://jsfiddle.net/nemtsov/ad8a5ugz/
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