The latest release of the plugin is focused on improvements to the performance of the large website, with more changes coming in the next version. And this new version is tested with the latest WordPress 6.3 release earlier this week.
While I always attempted to optimize all estimation and cleanup queries, depending on the database size, some of these queries that rely on joining multiple tables will always be slow. But, with this new version, the plugin includes two new settings: skip estimation of occupied space (the estimation of the dataset size in the database, and only return number of records) and the option to enable caching of every estimation query result for up to 2 hours (and clear cache when the sweeper is executed). With large websites (10GB+ database), these two options greatly impact plugin performance, but running all the sweepers estimations can still take 3-5 minutes. In late September, this will be addressed with more performance-related updates in the next major Pro 4.0 (and Lite 2.4) version.
The plugin dashboard has been reorganized, and a new box has been added to show a quick overview of the database. It shows information for all the database tables in the website instance and only WordPress Core tables.
As always, you can suggest new sweepers to be added or other features related to WordPress cleanup. And let me know which sweepers you use most often.