The Last of Us: Remastered has just been given patch 1.08 to fix frame-rate issues on the PS4 Pro, which has been successful and frame-rates are higher, but that doesn't mean that all issues are gone.
A report online has found that with the new patch high quality shadows have problems at 1080p, and anti-aliasing becomes more obvious.
The Last of Us is still clearly getting tweaked bit by bit, so it's likely we'll see it continually improved. Have you had issues with the above?