Most BRRips are 23.976 fps. If your subtitle was made for a 25 fps PAL DVD, it will gradually drift out of sync. Always prioritize files labeled "BluRay."
Once you download the .zip or .srt file, follow these steps to play it with your movie: subtitle DespicableMe2.brrip.2013.1080p
To download the subtitle file (usually in .srt format), these are the most reliable community-driven databases: Most BRRips are 23