: Press the H key to make subtitles appear earlier (hasten).
: Go to Tools > Track Synchronization to enter a specific numerical offset in seconds. Permanent Fixes
If you want to permanently fix the timing of an out-of-sync file, you can use online tools like the Happy Scribe Subtitle Shifter or software like Subtitle Edit to shift the entire timeline and save a new, corrected file.
If the subtitles are slightly ahead or behind the audio, you can fix them in real-time using VLC Media Player: