When I open a GF form for edit in wp-admin it initially takes 35 seconds or more to load the page. For instance, Query monitor revealed it took 4528 queries to generate the page taking 95% of the total page generation time. Most queries involve lookup and creation of Transients in wp_options. After the initial load a subsequent load takes much less time (still 7 seconds).
If I let all GF transients expire and reload a form for edit 648 transients are created, just as many as the number of forms I have.
Why does it do this for ALL pages when I only edit one of them? Seems totally unnecessary at that point. Contrary, loading of the GF forms overview is never slow, even when the transients have expired.