Zoom's UI unresponsive after pressing "Start Video" if I am the only person in a meeting This has been a problem for me for over a year.I use a Windows 10 PC, Zoom version 5.9.7 (3931). If I am the ONLY person in a meeting (it could be my meeting or another meeting I joined) and I press "Start Video," Zoom's user interface begins to act extremely unresponsive/laggy for seconds at a time. The video feed from my camera will present normally, though (movements are always smooth and not lagging.) To press the mute, stop video, view chat, or any other UI buttons, I have to hover the cursor over a button for ~5 seconds until the button's hover effect finally shows, and then it immediately hangs again for ~5 seconds or so. Clicking anything will not generate a response until 5 seconds or sometimes more. Even trying to move the Zoom app window around my 1st monitor (in a dual monitor setup) isn't responsive. I will click and drag the Zoom app window to a new position, and it will hang until a couple seconds have