Some SRS apps have an option to add a random offset to the scheduler for future reviews. In this manner the same items won’t be reviewed in the same session (which risks reinforcing one item based on another, when in real life they won’t necessarily come together so now should be able to recall one without the need of seeing the other first). This is generally a percentage of the total delay (so for example if a review is scheduled for 10 hours in the future it could actually be 9, 10 or 11. If a review is scheduled 30 days it. could actually be anywhere in between 27 and 33.
I think Bunpro could benefit from this, and it would also help smoothen review spikes.