hi, there is bunch of things you need to learn about latency... In the "Knowledge Base" I typed in latency: http://support.presonus.com/hc/en-us/articles/210045703-Latency
you can do these searches in the KB and Google.. wherever and it's important to learn what you can.. because it's all important... There is a LOAD of information you NEED to absorb and MUCH of it is in the Knowledge base. We can go at this one question at a time or you can dive in and save yourself a lot of headaches and time by reading EVERYTHING pertinent to your device, and software. NOTE there is a PLETHORA of video's on HOW TO on this site, and youtube, and I would like to introduce you to "Home Studio Trainer" http://homestudiotrainer.com/
and Johnny Geib... he has video's, and even one on one support! SO get BUSY!