Recommendation to increase performance?

Thanks to all for your recommendations.
You helped me a lot.

I am not really good with screwdrivers or checking out individual settings (like NUC with Rock). I want/need an easy to use solution.
It sounds to me that this will be the Nucleus (but a very expensive one).

I think my NAS (DS218 play Synology 8.8 TB) should not be the problem.
The NAS is directly connected to my core (Mac mini) via one Netgear switch (so that should also not be the problem.
I am using Qobuz (that information is for Bill).
All looks like a performance problem with my older Mac mini.

I do have some additional questions:
So when I buy a Nucleus now, will the music files still remain on the NAS (8,8 TB Music files)?
Is it easy to transfer the library, playlist, settings etc. from the Mac mini to the Nucleus?
Which nucleus model would you recommend to me (the expensive one or the very, very expensive one)

Yes, leave the music files on the NAS for the moment. That should be fine.

You’ll need to do a Roon backup on the old Mini to a thumb drive; take that drive over to the new machine; do a Roon restore from the thumb drive on the new machine. As for which Nucleus, look at the page on them. With a huge library, I’d get the big one.

You may want to get a new mini instead. You can use it for other things. The Nucleus is only about Roon. And you can get a pretty nice Mac mini for the price of a Nucleus+.

You’re well into Nucleus+ territory there, so “very, very expensive”.

If you’re not comfortable with building yourself, don’t need the dealer support or the home automation features, AND want something that’s silent, I’d go with either the PrimeComputer i7 NUC (so that’s a Nucleus+ equivalent) or an i7 NUC in an Akasa case from QuietPC, and use (a bit of) the rest of the money to get a 10Tb external USB drive.

If you don’t need it to be silent, get what’s suggested in “ROCK for large libraries” here.

There you go.

Number of tracks should not make a difference. Its not like Roon is continuously scanning them…besides you can throttle the library scan and have it function on the off hours.

upgrade your RAM to 16gb, then look for other processes running.

It does. There’s a reason to why RoonLabs suggests even more power than you can get from a Nucleus + for very, very large large libraries (i.e, 500’000+ tracks). See here for the full rundown.

The only reason it ‘could’ impact performance is due to the OS caching and continuously looking at the large library.

Consumer computers cache to increase the find speed. It works but there is a limit. Turn caching off, Mac does not need to cache, check or index the music…let Roon do that.

The more I think about it – you don’t want to tinker. Just get a new Mac Mini with the i7, 32GB of RAM, the 1 TB SSD, and the 10Gb Ethernet port. Should future-protect you quite well, Apple includes software to transfer everything from an old Mac to a new Mac, and you already know how to care for a Mac. Still cheaper than a Nucleus+.

Worth reading this:


I think you are right.
More power does always help.
But the described configuration cost more than 2.800 Euros.
I think a 500 GB SSD should be all right.
Thats makes it around 2.569 Euros.
Still a lot. I have to think.
But to manually change the bios to start a NUC with rock seems to be to much for my skill set.

It’s $2400 in the US.

How about a PC running Windows? Windows is the native environment for Roon, after all. Something like this:

Not true: the number of tracks affects the size of the database, and that is what Roon is normally working with and what affects the performance. The music files are not performance critical, either the quantity or size (samp,e rate).

1 Like

Hello Edward,

I just want to try to turn chaching off.
But how am I going to do that on. Mac (sorry but I tried already and didn’t find it.

Thanks Stefan

Hi Stefan

I Googled Mac Stop Cache

And I clicked the link in the first paragraph that said “Content types supported by content caching in macOS.”

Content types supported by the caching service

macOS includes built-in support for caching the following software.


  • macOS updates and Internet Recovery images (macOS 10.13.5 or later)
  • Apps and app updates from the Mac App Store
  • GarageBand downloadable content
  • iCloud data caching (photos and documents)
  • Apple Books content
  • Xcode downloadable components such as simulators (Xcode 10.2 or later)

If you don’t mind explaining, in which way does this apply to Stefan’s question, or Roon ?

Hello guys and thanks for all your support.
I have decided to try my own NUC Rock System.
It’s much cheaper than a new Apple Mac mini or Nucleus Solution.
Again thanks


It really is easy to do. For building the NUC itself there are lots of YouTube videos showing the steps. For doing the ROCK bit, ask away here.

I went to Micro Center and purchased an 8th gen i7 NUC on Saturday.

It really wasn’t tough to “build” and load the software. The longest part was actually copying all my FLAC files to a new disk drive I purchased to attach to the NUC.

The new NUC running Roon OS/Rock is indeed a lot faster than my old Windows 10 i5 desktop PC with 32GB memory.

Lots of videos on YouTube on how to get it up and running, and we’re all here to help!

Two and a half thousand Euros for a Mac Mini. What a time to be alive.

I could have quite a few spares for my £300 second hand eBay NUC for that.