[vdr] Syncearly + subtitles problem

I am having problems with subtitles:

- vdr 1.6.0 - vdr-1.5.18-h264-syncearly-framespersec-audioindexer-fielddetection-speedup.diff - vdr-1.6.0-truecolor-compile_fixes.diff - reelbox plugin

The subtitles appear 6-10 seconds too early, which is really annoying. Tested the recordings on a vdr 1.6.0 + FF without the patches and the subtitles were displayed correctly. I imagine it has something to do with the syncearly, but can't say for sure. Can I somehow disable the syncearly part of the patches to verify that this indeed is the problem. ( I need the patches because I can't compile vdr + reelbox plugin without them )

Josce