Topic: UFX + iPad 4 + Auria + Latency?

Can anyone shed some light on achievable latency with that setup? I run my UFX in a live environment, while using a laptop to do some FX processing. Latency with the UFX + laptop is outstanding - perfectly acceptable for live performance. However, I would gladly switch to iPad if the latency is good. Just trying to avoid investing $ if it won't work well for me. So, latency, anyone?

Thanks much for any info,
-Matt