Using prerecorded audio for lip sync

So, I can't get audio to playback properly when syncing. I record an audio track using a good mic, through a Scarlett 2i2 into Audition. Set my levels and export. When I bring it into Ch, the playback is choppy and the liip sync only generates half of the visemes it should be.

I've double checked the audio output setup. and recorded rate in Audition and every lines up. I've tried different record rates, etc. 16bit, 24bit...44100, 48000, always changing my output the match. Regardless, I can't get it to work in Ch. The only success I've had is using the webcam to capture audio, but even that seems to "miss" a lot of visemes.

Does Ch have a preference for audio files? Wav or MP3, high bit depth or low? Am I missing something really simple?

Also, generally speaking, I do not seem to have the smooth performance I see oksamurai has in his videos. There seems to be more hiccups and studders in the performance capture. I'm not maxing out on anything on my system, so I'm not sure why there would be an issue. (i7 990x, 24GB ram, Sandisk Extreme 480 SSD drive and a 980 Ti card, running Win 10)

Any help would be appreciated