any time I edit a card, or a block in a character sheet, I have to click into that field and wait for a slow count of 3 or 4 before making any changes... or else the changes I make will disappear and my cursor will relocate to the top of the input field.

my players have complained of the same thing (when I'm hosting), and I've noticed it as a session client as well, despite my stable local ethernet connection and reliable Gigabit internet service.

It makes most of gameplay very difficult.