I guess you're right! I'd never noticed the laggy resizing (I use a laptop so nearly always have apps taking up the full screen). But I see that also (recent MB

I guess you're right! I'd never noticed the laggy resizing (I use a laptop so nearly always have apps taking up the full screen). But I see that also (recent MBP w/ 32Gb RAM). I just did a comparison with slack running in chrome and, maybe I'm saying something silly here, but the difference seems to be that I'm simply unable to resize the chrome window at the same speed when the tab inside is displaying slack. So I was unable to "leave the content behind" as you did in your video of the electron app (and as I was also able to do with the electron app).