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  "path": "/2026/03/27/does-disk-storage-speed-limit-macos-virtual-machines/",
  "publishedAt": "2026-03-27T07:30:00.000Z",
  "site": "https://eclecticlight.co",
  "tags": [
    "Macs",
    "Technology",
    "disk image",
    "FileVault",
    "macOS 26",
    "Tahoe",
    "virtualisation",
    "VM"
  ],
  "textContent": "In Ventura, VM disk performance was poor, with write speeds of 0.7 GB/s. How fast is it now in macOS 26.4, and how does using FileVault affect it? Plus a note on problems with BSIs in VMs.",
  "title": "Does disk storage speed limit macOS virtual machines?"
}