Not enough testing or user experience analysis has been done when a review is running on a document with lots of issues raised over many previous revisions.

There could be thousands of issues on tens of documents over tens of revisions.

There are serious concerns over the performance of the system in this case.

One potential idea if system struggles to return so many issues is to align the user experience to pdf viewer, by offering only open issues first on the interface.

The provide a toggle to view the rest.

Another potential toggles would be to have the ability to show issues of the current workflow or all workflows (in a multiple parallel workflow context of the same doc revision). This toggle would be only valid when user is looking at open issues.