The 2nd basement licker in Claire B will block your path and attacking immediately after seeing you whilst on the way back from getting the diamond key. Bullet manip is no longer consistent and the only thing that worked was 7rayD's camera manip.

Xbox Series X G1 fight Leon-Hardcore. This shows the high fps very well.

Here are three videos of boss fights on my XBSX on high framerate.

https://www.twitch.tv/themrenigma72/clip/AggressiveInexpensiveStapleDuDudu-uRzxpy1pTCxZrED-

https://www.twitch.tv/themrenigma72/clip/TriumphantWealthyGorillaPastaThat-afQ3TWlb4sOepDCa