I have previously used Shame Eraser [0] for this, which uses your Twitter Archive [1] to get all of the status IDs so you don't run into rate limiting problems. I was able to delete 87k tweets in a few hours a couple years ago with it. Is this software just as fast?

[0]: https://github.com/benjaminjackson/shame-eraser

[1]: https://help.twitter.com/en/managing-your-account/how-to-dow...