The app's datasources are 33 SQLServer tables/views, 16 Flows, 1 AzureBlobStorage. 12 screens, about 500 top-level controls in all (plus others within galleries, etc.).
So quite big, and as it has grown in size the time taken to open in Studio has lengthened a bit (up to about 20 seconds or so, which is not a problem), but there was a step change yesterday to the current 17 minutes. Saves take about 4 minutes, too.
I've tried the usual steps - 3 different browsers, 2 different internet connections, cleared caches. Also tried restoring to a (smaller) version from 3 days ago, in case additions made in the last day or two have caused the problem, but this version is just as slow loading. Even restored a version from 9 days ago - same.
This is the biggest of the apps I'm working on, but the next biggest - similar characteristics - is also pretty slow, taking about 3 minutes to load.
Are there any particular points to look for that might cause loading problems? types of connector, onstart routines, graphics, whatever..? Should I just raise a support ticket?
The app runs perfectly well, by the way - the problem is opening for edit, not for play.