Is Storage Studio slowing my Mac down?

Storage Studio is built to stay out of your way, so it's rarely the reason a Mac feels slow — but you can check in a minute. Look at what it's doing in Background Activity, see which performance mode it's in, and if you want it quieter, choose a gentler mode or stop the job. If it isn't the cause, Tuhi can look at your Mac's memory, processor load and temperature and tell you what is.

%% caption: Working out whether Storage Studio is slowing your Mac
flowchart TD
  A[Your Mac feels slow or hot] --> B[Open Background Activity]
  B --> C{Is any job marked Working?}
  C -->|Yes| D{Can it wait?}
  D -->|Yes| E[Stop it, or choose Light or Minimum mode]
  D -->|No| F[Let it finish - it gives way to your work as it goes]
  C -->|No| G[Storage Studio is mostly idle]
  G --> H[Ask Tuhi why your Mac is slow]
  H --> I{Disk nearly full, memory tight, or running hot?}
  I -->|Disk nearly full| J[Free up space]
  I -->|Memory tight| K[Close a few heavy apps]
  I -->|Running hot| L[Let heavy work finish, check ventilation]

Step 1: See what Storage Studio is doing

1. Open the More menu → Background Activity…. (In the Advanced view's popover it's More → Job Insights….)
2. Read the header: Everything's running smoothly., or how many jobs need a look.
3. Look for a card marked Working… — that job is running right now. Other cards show when they last ran: Healthy, Ready (hasn't run yet), Attention or Needs attention.

If nothing is marked Working…, Storage Studio isn't doing any background work at the moment and is very unlikely to be the cause. See Background Activity and Job Insights.

Step 2: Check the performance mode

Open the More menu → Storage Profile… and look at the small menu in the header — for example Auto · Good. Hover it to see the reason. If it says Auto · Survival, Storage Studio has already paused its own background work because your Mac is under heavy load; something else is keeping it busy. See Performance modes.

Step 3: Make it quieter if you need to

• Let it finish. Background work slows down while you're using your Mac and gives way to your own apps' disk use, so letting it run usually costs very little. See Why Storage Studio works slowly on purpose.
• Choose a gentler mode. In the Storage Profile's performance menu, pick Light — gentle on resources, or Minimum — core only to hold its background services altogether. Switch back to Automatic — adapts to your Mac later.
• Stop the job. Moves, clear-ups and scans have their own Stop or Cancel, and stopping part-way is safe. See Pausing or stopping everything.

If it isn't Storage Studio

Ask Tuhi "Why is my Mac slow?" or "Why is my Mac running hot?". Tuhi reads your Mac's current memory use, how busy the processor is and its temperature — on your Mac — and tells you in plain words what stands out.

If your disk is nearly full, start with Freeing up space: the options, or Emergency Space if it's full right now. For Storage Studio's own size on disk, see How much space Storage Studio itself uses.

See also: Battery and power · Everything looks stuck · Asking Tuhi a question