I am upgrading one of our sites from V13 to V17, I am finding when I am saving any page that has a block grid on it it seems to be taken over a min to save the page and I am seeing the following in the Dev Tools Windows.
It may be worth you turning off some of those packages, either one at a time or all then turning them on one by one to see if there’s a particular package that may be causing that and interfering with something.
Also, make sure you do a hard refresh each time to ensure you’re getting fresh files and not from the cache.
maybe not related in ur case but V17 makes more, smaller SQL queries than V13. If you’re working against a remote database, even a 35ms ping multiplied across many queries adds up significantly https://forum.umbraco.com/t/website-significantly-slower-since-upgrading-from-v13-to-v16/6049?page=2 users are reporting 10–30s including me , save times in this scenario. If possible, use a local DB for development.
but ya try disabling all extensions, the cache settings that might be the case
I am working with a Local Instance of SQL Server, there are no sql issues that I can see with the V13 sites I have setup, so I take a look at the extensions to day.