VSC dev here. Correct, perf is a priority for us and it's no black magic. A simple one is to keep your bundles small. VSC's main bundle is less than 9MB, Cloud

VSC dev here. Correct, perf is a priority for us and it's no black magic. A simple one is to keep your bundles small. VSC's main bundle is less than 9MB, Cloud UI seems to be 15.