[dave333]

I think it may be that you are just not yet familiar with a few common front end idioms. I am sure most front end developers would be at least as out of their depth in the back end (spoken as a 30+ year front ender). Populating a display with a small initial data set either via pagination (good when the user needs to read or scan most of the rows e.g. a newsreader) or endless scrolling where scrolling down adds more rows, or just delayed population avoids a long initial response. Edit buttons for each row can probably wait until the user focuses on a row except for maybe a placeholder button facade. Large complicated data shouldn't be in a dialog.