[Webkit-unassigned] [Bug 236173] Big drop in canvas performance above 3840px

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236173

--- Comment #7 from webkit_org at zdanowski.pro ---
Due to reassignment I stopped working on the project, which doesn't have a huge user-base anyway. However, now the problem is I think much bigger: Google Spreadsheets is unusable when Safari window is maximized on a 4K screen running in scaled resolution mode. The rendering performance is in single digits when scrolling through a document containing any data.

To replicate this open a new Google Spreadsheet, go somewhere reasonably far (e.g. P200) and start typing. Click a few cells and try typing - by the 2nd-3rd cell the web app becomes unusable until the window is resized to a size smaller than 3840x3840.

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