SubdivX (often stylized as SubdivX.com) is one of the largest repositories of user-uploaded subtitles, specifically tailored for the Spanish-speaking community (Latin America and Spain). Unlike automated subtitle scrapers, SubdivX subs are often hand-timed and verified by users.
Installing the addon is the easy part. Achieving "extra quality" is about the delta between the video timestamp and the subtitle timestamp. Here is how to force perfect sync using the SubdivX addon. subdivx stremio addon extra quality
Open your browser, go to Subdivx.com, and search for the movie. SubdivX (often stylized as SubdivX