I use the Pro plugin to get news of a few topics of the Google News RSS feed. Somehow I can get the Google logo, but not the thumbnail that from the actual news page.
There shouldn’t be any slowness because of this MOD.
The thumbnail URL is cached in the DB for 1 week when it is forced to pick from the original website.
So the first page load may be slow and upcoming requests will be fast since the thumbnail is cached but will never bring down the entire site.
I tried it on my local site and loaded feed items from the same URL. Screenshot below.
Can you please confirm if this is seen consistently?