I have this issue that comes and goes. When playing a project the are sometimes pauses, crackles and poor sound. I think this is somehow related to the VSTs because the noise occurs when it reaches the introduction of a VST sound. This is true of Halion or other VSTs. Sometimes when I have played through a tune a few times it, this improves the sound quality, but sometimes not. It may also be worse on larger projects with many tracks, but I am not sure of this.
Does anyone have any thought what might be causing this and how to improve it?