https://wccftech.com/playstation-4-system-update-7-02-released/

PlayStation 4 System Update 7.02 is currently being rolled out which is aimed to improve system performance.

While last week’s 7.01 firmware update focused on improving the console’s system stability, this brand-new system update is aimed to improve the PlayStation 4’s system performance. The update weighs in at 447.9MB, and as with most of Sony’s firmware updates, patch notes are 'almost' absent. We’re pretty sure that the update offers more than just improved system performance, but exact details are unknown at this point.