This plugin generates thousands of SQL queries that made my site crawl:
Flamingo deactivated: This page took 55 queries and 0.385 seconds to be generated.
Flamingo Activated: This page took 12707 queries and 7.446 seconds to be generated.
Both are from the home page of my site abdussamad.com but the numbers were similar for other pages.
I don't know what the cause is.