---
id: performance-battery.how-much-of-my-mac-can-storage-studio-use
url: https://storagestudio.us/faq/performance-battery/how-much-of-my-mac-can-storage-studio-use
category: "Performance & battery"
subcategory: "Staying light on your Mac"
question: "How much of my Mac's processor and memory is Storage Studio allowed to use?"
alt_questions:
  - "Is there a limit on how much CPU Storage Studio uses?"
  - "Does Storage Studio cap its resource use?"
  - "storage studio cpu limit"
  - "What share of my Mac does the app use in the background?"
short_answer: "Storage Studio limits its background work to a share of your Mac's free processor and memory, not of the whole machine. The share depends on the performance mode and shrinks further while you're working or on battery."
tags: ["cpu", "memory", "limits"]
related: ["https://storagestudio.us/faq/performance-battery/what-are-storage-studio-performance-modes", "https://storagestudio.us/faq/performance-battery/what-is-extreme-performance-mode"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# How much of my Mac's processor and memory is Storage Studio allowed to use?

Storage Studio caps its background work to a share of what your Mac has **free** at that moment — never a share of the whole machine. On a busy Mac with little spare, that share is tiny; on an idle Mac it can work a bit faster and finish sooner.

How big that share is depends on the performance mode. The everyday modes keep it small, **Light** keeps it smaller still, **Survival** pauses background work entirely, and **Extreme** — which you have to choose yourself — lets background work use more of the spare capacity so it finishes sooner.

On top of the mode, the budget shrinks further while you're actively typing or clicking, and when you're on battery.

See [what the performance modes mean](https://storagestudio.us/faq/performance-battery/what-are-storage-studio-performance-modes).