# Very slow writing tags to video files on fileserver

**URL:** https://community.mp3tag.de/t/very-slow-writing-tags-to-video-files-on-fileserver/59493
**Category:** Support
**Created:** [December 23, 2022, 7:27pm UTC](https://community.mp3tag.de/t/very-slow-writing-tags-to-video-files-on-fileserver/59493 "2022-12-23T19:27:41Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [December 23, 2022, 9:15pm UTC](https://community.mp3tag.de/t/very-slow-writing-tags-to-video-files-on-fileserver/59493/2 "2022-12-23T21:15:08Z")

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Maybe this points can help you identify the issue(s):

> [@Batch editing performance issues on NAS](https://community.mp3tag.de/t/batch-editing-performance-issues-on-nas/56873/2):
>
> Slow access because ... network connections are the almost the slowest way to access a lot of files, other processes like indexers, players, anti-virus programs could block the files for some time, padding is not big enough so the files have to be rewritten, Windows Defender slows down the access, see e.g. [Windows Defender - Speed of loading files in MP3Tag](https://community.mp3tag.de/t/windows-defender-speed-of-loading-files-in-mp3tag/47784) File sizes vary (e.g. is bigger for some files than for others) and together with insufficient padding lead to re-writing th…

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_[View the full topic](https://community.mp3tag.de/t/very-slow-writing-tags-to-video-files-on-fileserver/59493)._