Having a problem with the performance is perfect criticism, but the commenter i was replying to was bashing it because of it&#x27;s choice, not because of it&#x27;s performance. He won&#x27;t even try it before saying that.<p>web rendering doesn&#x27;t automatically make an app slow. And in my experience choosing a &quot;common&quot; platform like the web allows an app to run everywhere. I&#x27;m not suddenly going to be able to triple my development speed, so without the common platform that means that i&#x27;d only be able to support one major platform, or all platforms but with a small fraction of the development speed, and most likely many more bugs.<p>And to be fair, saying slack is nothing more than &quot;text on a screen&quot; is really oversimplifying it. There are tons of formatting options, code highlighting, embedded HTML, embedded video and images, attachments, coloring, emojis, and more.<p>It seems like a pretty obvious choice to go with a web rendering engine seeing as it supports almost all of that &quot;natively&quot;.