This sounds wrong, the Dart team are a team of highly talented perf-focused hackers who spend a lot of effort optimizing both Dart2JS and DartVM with advanced c

This sounds wrong, the Dart team are a team of highly talented perf-focused hackers who spend a lot of effort optimizing both Dart2JS and DartVM with advanced compiler tricks to get the most out of each platform. See advanced profiler and introspection tools to profile Dart Apps: https://www.youtube.com/watch?v=Ww8ISWzZGRE https://www.youtube.com/watch?v=Ww8ISWzZGRE From Kasper Lund showing advanced compiler tricks Dart2JS uses to generate highly optimized JS: https://www.youtube.com/watch?v=FqsU3TbUw_s https://www.youtube.com/watch?v=FqsU3TbUw_s From V8 and Dart founders about why Dart is faster and easier to optimize: https://www.youtube.com/watch?v=huawCRlo9H4 https://www.youtube.com/watch?v=huawCRlo9H4 Performance for each platform can be tracked at: https://www.dartlang.org/performance/ https://www.dartlang.org/performance/