How do I deal with Opera showing Facebook images as too small?

I’ve just changed phones, from Lenovo K50 to Xiaomi Redmi 7.

But there’s one problem that I haven’t seen before – images shown are unreadable, simply caused by fact that they’re too small to see anything. I don’t want to change browsers, as Opera allows me to check messages without app.

I’ve tried clearing app data and reinstalling but it gave no result. Any ideas?enter image description here