I had performance problems (stutter) with video+subtitles on Nokia N9. There was no stutter when the subtitles were disabled.

I changed the 0.04 code to process the srt file and subtitle-seeking in C++ instead of javascript. (I noticed the complete subtitle list is iterated at every position change event)

Anyway I can now play video with subtitles with no/much less stuttering. If the author is interested I can send the diff.