Ionic 2 vs Native Programming

Hello! I would like to create mobile app from scratch. We choose two way for that, first one is Ionic second one is Native Programming, sure. We have some doubts about perfomance between them. Could somebody gives me some arguments about Ionic because as I see it more suits for us (because we get all together, ios and android), please? We want to use Ionic but also we don’t want to spend a lot of money for nothing. That’s why I’d be glad for every advice or investigation. Thank you.

There are a lot of examples of this around the web but it heavily will depend upon the type of application you want to build.

The type of application is a video chat between two people