Feature #21651
Updated by Peter Amstutz about 2 months ago
From discussion: Virtual lists significantly improves performance of the I/O panels, but it turns out the "JSON" I/O tab and "Command" process panel are still very slow when they start to become very large. These are "CodeSnippet" controls. These are good candidates to be virtualized because the main prop is the "lines" array and they are monospace text of fixed height. Create a "VirtualCodeSnippet" that has the same interface but uses a virtual list, and use that for the JSON I/O tab and Command panel. list.