Briefly describe (1-2 sentences) the Bug you’re experiencing: Scrolling down my (and other users’) inbox, I often have a very long wait for data to pull/display. This happens not only after a relatively short time scrolling (e.g. one page height), but also after scrolling forever and ever and ever down a long list (which honestly I could understand if it were pulling much older data, but is still a challenge). Submitting this a bug because this is occurring when scrolling even just slightly down from what’s pulled when the page is first loaded.
Steps to reproduce: Click on Inbox. Start scrolling down. See brown placeholder boxes. Wait. See content.
Browser version: Chrome stable on macOS 10.14, Windows 10; Chrome OS stable 73
Upload screenshots below: