Adding this to the Feedback section was not a selectable option.
The performance on mobile had one improvement only. The text entered into a reply no works correctly. The responsiveness of the site on mobile is much worse. Using on iPhone 6 Plus in portrait the screen is really jumpy and sometimes needs a reload for the page to fit width properly. Trying to use the community on the phone in landscape view is absolutely unusable by any modern standard. Not responsive to that width and the page will not resize with pinch. The page floats for too long when swiping so even trying to move the page around has issues.
The community certainly seems even slower than it was before.
The Ideas area is much less hidden so that is nice. Looks a little nicer, but the issues with mobile are not exciting at all.