Plugin is not cleaning up transients from wp_options table

This plugin is not cleaning up the transients in the wp_options. After a week on my site, I had approximately 85k rows in the wp_options table and the site was coming to a complete standstill. I believe it is writing a 2 rows each time the plugin is used to keep history of the execution. I suggest a limit to the length of history stored. The last successful execution and 24 hours of history would be adequate.