Small mkv desync using KMPlayer

[johnnysv]

I'm using KMPlayer + CoreAVC to watch mkv files.From what i've noticed there are some a/v and subtitle desync which appear once in a while on high bitrate movies.Sometimes the subtitle gets desync without getting a/v desync(skipped subtitle lines).I have to mention that i have an AMD Athlon 2200+, 1,8GHz 768RAM, 128mb ATI Radeon 9200 graphic card.
Is there any way to improve at least subtitle processing?(i'm using overlay mixer...anithing else slows down dramatically the playback).

[poisondeathray]

Computer specs are probably too old, so you can't playback realtime

Divx h.264 decoder will get you a few more FPS than ffmpeg-mt decoder that KMplayer is using, it might be just enough enough for your PC to watch.

How do you know it's not a problem with the .mkv's? Maybe they are desynced to begin with? Have you tried on another computer?

[johnnysv]

I don't think it's a problem with the mkvs...
I'm using AVC decoder for mkv..so is divx h264 still working?