# Sync becomes very slow between Mac and Android device

**URL:** https://forum.syncthing.net/t/sync-becomes-very-slow-between-mac-and-android-device/21614
**Category:** Support
**Created:** [February 9, 2024, 6:11pm UTC](https://forum.syncthing.net/t/sync-becomes-very-slow-between-mac-and-android-device/21614 "2024-02-09T18:11:23Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![tomasz86](https://forum.syncthing.net/letter_avatar_proxy/v4/letter/t/96bed5/32.png) [@tomasz86](https://forum.syncthing.net/u/tomasz86)
#### Post date: [February 9, 2024, 6:19pm UTC](https://forum.syncthing.net/t/sync-becomes-very-slow-between-mac-and-android-device/21614/2 "2024-02-09T18:19:16Z")

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Are you trying to sync a single folder with 8000 files from the Mac to Android? If yes, then this is going to be extremely slow. There is really nothing that can be done about it (see [https://forum.syncthing.net/t/how-to-deal-with-abysmal-i-o-performance-on-android-10/18406](https://forum.syncthing.net/t/how-to-deal-with-abysmal-i-o-performance-on-android-10/18406) for some details).

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