That raised an eyebrow for me, too. I recently moved a project from Angular 1 to 6, so this is fresh in my mind. There aren't enough changes between 4 to 6 (or

That raised an eyebrow for me, too. I recently moved a project from Angular 1 to 6, so this is fresh in my mind. There aren't enough changes between 4 to 6 (or even 1 to 6) to cause mysterious 30 second lag times by themselves. And upgrading the front end's base framework under a time crunch is almost always a bad decision, regardless of which framework you're using. In the companies I've worked for, these guys would be written up and likely put on a performance improvement plan, if not flatly fired.