Pictures with very low resolution in Taboola Android SDK 3

Since I updated the SDK from version 2.9.3 to version 3.10.1, it appears from time to time that the pictures in the items in the taboola widget have a very low resolution. The resolution also doesn't improve after some time, but might only improve when I leave and reopen the screen where that widget is embedded.

This never happened before the SDK update, but I also can't find any hint in the documentation about this behaviour.

So does someone know under what circumstances pictures are loaded with such a low resolution? And if there's anything I can do about it, like a configuration?