WP SMUSH PRO - Cron Batches

Relatively self explanatory title. Wondering if anyone has looked into triggering WP Smush Pro to complete a full batch smush of new images via a cron job.
I am finding users dislike to slower upload times of smushing on the go, however not all of them are savvy enough to actually go an batch smush at regular intervals despite training.
Thoughts on solutions in likely case cron is not possible.?