{"id":"backups.why-is-my-first-backup-so-slow","url":"/faq/backups/why-is-my-first-backup-so-slow","category":{"id":"backups","title":"Backups & restore points"},"subcategory":{"id":"speed-progress","title":"Speed, progress and the first backup"},"question":"Why is my first backup so much slower than the ones after it?","alt_questions":["first backup takes forever","Is the first backup always the biggest?","backup slow at the start then fast","initial backup time Storage Studio","why is Data Backup slow"],"short_answer":"The first backup copies every file once; later backups only save what changed. For a faster first backup use an external SSD, or bucket storage such as Amazon S3 for cloud.","answer_markdown":"Because everything in it is new. The first backup has to copy every file once; after that, each backup only saves what actually **changed**, so day-to-day backups are quick.\n\nTo make a big first backup finish sooner:\n- Back up to an **external SSD** — it's the fastest destination.\n- For cloud, prefer bucket storage such as Amazon S3 over services that throttle uploads.\n- Leave the Mac plugged in and awake; the backup can keep going in the background.\n\nAdding a large new folder to an existing set has the same effect for that folder: its first pass is the big one.","answer_html":"

Because everything in it is new. The first backup has to copy every file once; after that, each backup only saves what actually changed, so day-to-day backups are quick.

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To make a big first backup finish sooner: - Back up to an external SSD — it's the fastest destination. - For cloud, prefer bucket storage such as Amazon S3 over services that throttle uploads. - Leave the Mac plugged in and awake; the backup can keep going in the background.

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Adding a large new folder to an existing set has the same effect for that folder: its first pass is the big one.

","answer_text":"Because everything in it is new. The first backup has to copy every file once; after that, each backup only saves what actually changed, so day-to-day backups are quick.\n\nTo make a big first backup finish sooner:\n- Back up to an external SSD — it's the fastest destination.\n- For cloud, prefer bucket storage such as Amazon S3 over services that throttle uploads.\n- Leave the Mac plugged in and awake; the backup can keep going in the background.\n\nAdding a large new folder to an existing set has the same effect for that folder: its first pass is the big one.","tags":["speed","first backup","incremental"],"related":[{"id":"backups.why-is-my-first-cloud-backup-taking-hours","question":"Why is my first cloud backup taking hours — is it stuck?","url":"/faq/backups/why-is-my-first-cloud-backup-taking-hours"},{"id":"backups.why-are-google-drive-and-dropbox-backups-slower","question":"Why are backups to Google Drive, Dropbox or OneDrive slower?","url":"/faq/backups/why-are-google-drive-and-dropbox-backups-slower"}],"applies_to":"all","last_reviewed":"2026-10-01","title":"Why is my first backup so much slower than the ones after it? — Storage Studio FAQ","description":"The first backup copies every file once; later backups only save what changed. For a faster first backup use an external SSD, or bucket storage such as Amazon S3 for cloud.","crumbs":[{"name":"Home","path":"/"},{"name":"FAQ","path":"/faq/"},{"name":"Backups & restore points","path":"/faq/backups/"},{"name":"Why is my first backup so much slower than the ones after it?","path":"/faq/backups/why-is-my-first-backup-so-slow"}],"jsonld":{"@context":"https://schema.org","@type":"FAQPage","url":"https://storagestudio.us/faq/backups/why-is-my-first-backup-so-slow","inLanguage":"en","dateModified":"2026-10-01","mainEntity":[{"@type":"Question","name":"Why is my first backup so much slower than the ones after it?","alternateName":["first backup takes forever","Is the first backup always the biggest?","backup slow at the start then fast","initial backup time Storage Studio","why is Data Backup slow"],"acceptedAnswer":{"@type":"Answer","text":"Because everything in it is new. The first backup has to copy every file once; after that, each backup only saves what actually changed, so day-to-day backups are quick.\n\nTo make a big first backup finish sooner:\n- Back up to an external SSD — it's the fastest destination.\n- For cloud, prefer bucket storage such as Amazon S3 over services that throttle uploads.\n- Leave the Mac plugged in and awake; the backup can keep going in the background.\n\nAdding a large new folder to an existing set has the same effect for that folder: its first pass is the big one.","url":"https://storagestudio.us/faq/backups/why-is-my-first-backup-so-slow"}}]},"fragment":"
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Backups & restore points · Speed, progress and the first backup

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Why is my first backup so much slower than the ones after it?

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Short answer: The first backup copies every file once; later backups only save what changed. For a faster first backup use an external SSD, or bucket storage such as Amazon S3 for cloud.

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Because everything in it is new. The first backup has to copy every file once; after that, each backup only saves what actually changed, so day-to-day backups are quick.

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To make a big first backup finish sooner: - Back up to an external SSD — it's the fastest destination. - For cloud, prefer bucket storage such as Amazon S3 over services that throttle uploads. - Leave the Mac plugged in and awake; the backup can keep going in the background.

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Adding a large new folder to an existing set has the same effect for that folder: its first pass is the big one.

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