The problem with the web is not one specific missing feature, or even performance. Man-centuries of effort by browser makers have been able to make performance

The problem with the web is not one specific missing feature, or even performance. Man-centuries of effort by browser makers have been able to make performance not-quite-competitive instead of just hopelessly uncompetitive. The problem with the web is that the developer experience is nightmarish. The fact that native apps don't suffer XSS should be a hint about where to start looking, but it's really just a house of horrors in there.