On Office 365 (desktop version), sometimes when you click a dropdown like the "different kinds of bullet lists" the whole application freezes for a couple of se

On Office 365 (desktop version), sometimes when you click a dropdown like the "different kinds of bullet lists" the whole application freezes for a couple of seconds while it builds the menu content or something. This didn't happen with earlier versions, if memory serves me right. I'm not sure if this is web tech or some other kind of new framework under the hood, but it makes me sad that with the speeds and cores we have on modern processors old-fashioned things like word processing have got slower than they used to be. Native Applications in the platform's toolkit (not some cross-platform abstraction on top) will always squeeze a little bit more performance and usability out of the corners.