Tweet limit setting is not working, all post are displayed causing long load time

Unfortunately don't have a solution for this. According to the docs https://developer.twitter.com/en/docs/twitter-for-websites/timelines/ove... these attributes should work. I can confirm I'm seeing the same issue as yourself, none of the settings actually work that get sent to the twitter widget. So unless they changed the attribute names or there is a new widgets.js out there not sure what can be done.

Posted on a message board but with all the issues people have been having I'm not hopeful for a quick reply but will keep an eye out.

Thank you @smustgrave

Started an umbrella ticket to track all these.