Different releases (Blu-ray rips vs. HDTV captures) often have different frame rates or intro sequences. If your subtitle file isn't synced to the specific resolution/release of your video file, the dialogue will lag or lead.
The subtitles for Prison Break Season 2 in both 720p and 1080p resolutions are compared in the following table: Prison Break Season 2 Subtitles 720p Vs 1080p
Resolution (720p vs. 1080p) does not inherently change the timing of subtitles. However, different "rips" of the same season often come from different masters: Different releases (Blu-ray rips vs
If your subtitles don't match your video resolution, use these tools to realign them: use these tools to realign them: