This is a workaround for now. The tables are still DOM sourced because of too big dependencies between server side rendering and frontend JS code. The tables are initially load while tbody is hidden, this results in a speedup by around 65 %.
Show the cursor as pointer on stock overview page while hovering the product name cell to highlight that the productcard can be opened
Show a waiting cursor and disable all form inputs while doing background XHR calls to highlight that the user should wait
Place the search field (to search a table) on all pages to the left most place
Bernd Bestel