I’ve just found that when tap-to-open any dashboard views having “table views” inside, the app is almost freezing or unusable. This is happening on “device” and "the app emulator (both in editor and mobile preview). Previously they were working normally without any problems at all.
Fortunately they are still working normally on “Windows Desktop Browsers”.
The setting of my dashboard views is shown on above snapshot.
(Note that the related data tables contain only 2,000 rows.)
Opening the dashboard views in mobile emulator preview (Chrome for Windows 10), it took forever to load data and finally I’d got this “out of memory” error,
Again, there is NO problems when open as normal web-app on browsers (Chrome, Firefox, etc.)