If the lyrics or dialogue do not match Katy Perry's lips, you can easily shift the timing in VLC. : Speeds up the subtitles (shifts them ahead). Press G : Slows down the subtitles (shifts them back).

To make your media player detect the subtitle automatically, follow the "same folder, same name" rule.

: Right-click the video, go to Subtitle , and select your track. ⏱️ Step 4: Fix Sync Issues (If Needed)