Simply put, exactly as retarded as a normal skype call, seeing as it is real, yeah, I guess the animation was a little hard to create, but! Overall it WAS half bad, yes half bad.
The poorest cringiest part of the whole thing was how you overlapped the "Hey Macarena" music, things were as static-filled-mono-crap-audio as it was, this just dulled the entire dialogue leaving subtitles the ONLY option.