I recently purchased "Easy VHS to DVD for Mac" version 2.0.1 and experienced a slight delay in the audio -- less than a second, but noticeable enough to be unacceptable. I contacted Corel using my free one-time support contact and they told me to download version 1.0.5 and try it instead. I clicked on the link in their email, downloaded and installed, and it works, i.e., no audio delay. This older software version creates MPG recordings, while the newer one creates MOV. I'm not sure this makes a difference if you're starting with VHS quality anyway. But at least the audio is synchronized.
I'm running Mac OS X version 10.8.5.