Audio Dropouts inside Cubase ONLY on MacOS

Steinberg Hardware Legacy Steinberg Hardware
1

I have installed TOOLS for MR V1.7.8 for Mac OS X and setup MR bed on the manual.

MR played back songs from ITuens flawlessly. However, when I am inside cubase, it hear audio dropout even if my project has a single audio track.

I have followed Mac OS X Tuning Tips for Audio Processing.

Basically my computer is solely connected to USB ( elicenser) and FireWire cable.

I have spent hours to fix this. I hope we can fix it so I can start my music project ASAP.

I have uploaded the allowed 3 screenshots here. I will upload them after posting this.
Thank you very much.
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2

Im guessing your Mac cant handle all that streaming inside Cubase. Your drive is only 5400RPM BTW, should be a 7200RPM drive. I would put those big libraries on an external HD and stream them from that