You should probably look to see how your buffers are set.

As a rule of thumb: If response and loading times are too slow, reduce the buffer size; otherwise increase the buffer size if the audio playback is choppy or if real-time effect computation errors occur. As error-free playback is usually more important than fast reaction times, the buffer size should be raised to 16384 or 32768 if dropouts occur.

----------------------------

If this answer has, or hasn't, been of any use to you, please post a response so that we will know.  If it solves your problem, please mark the post as solved.  Thanks.