I want to ditch Windows for one of my PC's because Windows can't handle my music without stuttering due to latencies. How well can Ubuntu handle real time audio? I need low latency.
You can install the low latency kernel package with the Software Center, or using APT:
sudo apt-get install linux-image-lowlatency
If using the low latency kernel doesn't work for you, you have a different issue.
If you want to make it permanent, see How do I pin the lowlatency kernels so apt doesn't update with a newer generic kernel?