Another ui-router dev here. I&#x27;ve also never profiled transitions for performance (frankly, I don&#x27;t think I&#x27;ve seen it mentioned before).  I&#x27;d love to hear anything else you recall about your findings.<p>As for the ui-sref, there should be only one watcher per, and should only really impact perf if the target params change. Does that align with what you remember seeing?