Tweet Embeds WordPress Plugin is designed to allow for Tweets to be embedded in a website without loading Twitter’s tracking code, which has the added benefit of speeding up embeds.
According to the plugin’s developer,
When you embed Tweets on your website, Twitter asks you to include their JavaScript code that adds images, number of likes, and loads their styles.
But looking at the size of all the script files (yes, the one script tag loads multiple JavaScript files), does quite a bit more than that, including tracking your website’s users.
And it has pretty negative impact on your site’s performance as measured by Google PageSpeed.