Do you have another ssd for the music? I only see one listed there and that should only be for the ROCK OS. don’t want to put your music on the same drive as the OS for ROCK.
You might try going with 16 gigs of memory, especially if your are doing any DSP.
Edit:
Just found this series of posts that might explain some of what you are experiencing and what they did to fix it. Read through it and see if it helps.