Turn off the subtitles. That should stop the video from transcoding. What happens then?
LG TVs do not support TrueHD audio, therefore Plex has to transcode it to a supported format. If subtitles are enabled when the audio is transcoding, it forces a video transcode.
This is how the Plex LG app behaves with subtitles:
- Enabling image based subtitles, PGS or VOBSUB, results in a video transcode.
- If audio is transcoding, enabling any subtitle results in a video transcode.
- If audio is direct playing, text subtitles, SRT & VTT, direct play.
- For ASS/SSA subtitles:
- If Burn Subtitles = Automatic in the Plex LG app, enabling ASS/SSA subtitles results in a video transcode.
- If Burn Subtitles = Only Image Formats, ASS/SSA subtitles, direct play, but formatting information (color, location, etc) may be lost.
