My audio, especially on videos, takes a few seconds to load up on its own, and when it does load, the video pauses so the audio can catch up. It does this to me on games as well. What's wrong with the audio?
Well you did not give any info about your system so it is hard to say what could be wrong with it. We need more info.
Make/Model Motherboard, CPU, Ram, GPU, PSU would help.