[Natela]

React is not fast, clearly the simple idea of having a virtual Dom is very costly compared to do things by hand. However for a large scale app react makes it more easy to reason about and keep it maintainable, components are far easier to implement, etc...

So for many people, the benefits you get on the development side outweight the performance overhead

[pier25]

There is an overhead, but the main problem with the new Reddit is not that it was made in React, but that it's a massive fuckup. Not only from a programming perspective but also design and UX.

[ksrm]

Given how much they push you to use the app, it's possibly intentional.

[pier25]

I should have pointed out that I was referring to the new Redesign of the desktop web. I never use the mobile web.