I'm not familiar with this setup, but I would suggest first to try to figure out if it is vlc causing this issue.
You can view the messages of vlc by clicking:
[View] ->
To help you, we need
messages, to completely understand what your problems is.
To fix this, please be sure
before you start the playback to:
- Open: Tools -> Messages.
- Set Verbosity to 2
- Start playback to reproduce your issue
- Save text in a file or copy into clipboard
- Then paste the full resulting log here between [code]and[/code] (or use Pastebin.com if it's too long)
Also don't forget to name your
Operating System and provide the
VLC media player version.
..
also it would be best to turn the message verbosity all the way up by clicking:
[Settings] -> [Preferences] -> [Interface] -> [General]..
and on the right side you have "Verbosity".. set it to 2, then click [Save].
You may want to try turning the process priority up for vlc:
[Settings] -> [Preferences] -> [Advanced] -> [Other]..
on the right you see the checkbox.