Hello,
I am using the PatentsView API to retrieve patent citations, and recently, I've noticed a significant decrease in the download rate. The speed of retrieval has notably decreased (I am using `httr::GET(url = endpoint)` and `httr::content(response_patent)`.

Have any API rate limits been applied recently? I am trying to understand why the download rate has suddenly dropped so significantly.

Any help will be greatly appreciated. 
Ethan