I'm really feeling the pain right now. Convinced previous company react was better. Even built my own app in React, now I'm at a new place that is using Angular 1.5. My god, it's so painful trying to get everything working correctly with jquery plugins. The blessed route often doesn't work, even though technically it should. I'm also getting performance issues for really simple scenarios...
The only thing in ng-1 that really bit me, speed wise, was long select/option lists. I wrote a bit to load them using jQuery instead of ng-options and now I'm good.
