A few months back, I noticed the site loads very slowly now on my Safari iPadOS. The worst one is the Vocabulary page, which cuts off things if I change tabs or switch to another app then go back to it and try to scroll. Is anyone else having this problem? I do my lessons and reviews in the app rather than the website but didn’t have this issue initially.
Since the various apps are third-party creations, I suggest you search for the respective threads on these forums where the specific app you’re using is originally posted. Then the creator will get alerted to your issues.
But, known issues in general with WK, is having multiple tabs with WK open (since you mentioned that)