holmesal
commented
10 years ago Haven't seen this cropping up lately, but we are posting far fewer images than when we were testing the image parsing functionality.
This needs to be in shortwave-web, closing here for now.
When posting large images that get resized, scrolling gets crazy choppy. This has to do with how the browser paints resized images, and the solution is to resize them once after load using the canvas, before displaying them.
Problem and solution detailed in this stackoverflow thread