‎Re-reading the  original post, it was concluded that multiple connection don't effect the rate limiting. I interpreted this incorrectly the first time:
‎
"Nginx's limit_rate
function limits the data transfer rate of a single connection.‎"

But I'm certain a few posts, perhaps not on the nginx forum, state incorrectly that the limiting is per individual connections rather than all the connections in total. ‎

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