# WHY is owncloud still faster than nextcloud after all this time?

**URL:** <https://help.nextcloud.com/t/why-is-owncloud-still-faster-than-nextcloud-after-all-this-time/58420>\
**Category:** ℹ️ Support\
**Created:** [August 19, 2019, 1:56am UTC](https://help.nextcloud.com/t/why-is-owncloud-still-faster-than-nextcloud-after-all-this-time/58420 "2019-08-19T01:56:01Z")\
**Posts on this page:** 1\
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**Author:** ![tflidd](https://help.nextcloud.com/letter_avatar/tflidd/32/5_5575768a8748004e209b776fc1b2916d.png) [@tflidd](https://help.nextcloud.com/u/tflidd)\
**Post date:** [August 19, 2019, 8:57am UTC](https://help.nextcloud.com/t/why-is-owncloud-still-faster-than-nextcloud-after-all-this-time/58420/2 "2019-08-19T08:57:46Z")

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Regarding the preview generator, nachoparker has a quite nice tutorial how this works and how you can optimize it:

> [@Understanding and improving Nextcloud Previews](https://help.nextcloud.com/t/understanding-and-improving-nextcloud-previews/55733):
>
> Hi, I have been playing with the preview generation process to try to speed up things for low end devices (mainly for NextCloudPi) In case you are interested I would love some feedback [https://ownyourbits.com/2019/06/29/understanding-and-improving-nextcloud-previews/](https://ownyourbits.com/2019/06/29/understanding-and-improving-nextcloud-previews/)

I think owncloud has released a new media viewer but I don’t know if they generate thumbnails or if that is done via cronjobs or during the upload process. Nextcloud generate thumbnails of different size and when you access the folder for the first time they must be generated.

Did you see other performance difference? Upload or download? After the fork, the code was still very similar, so it would be interesting to see the differences after 3 years…

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_[View the full topic](https://help.nextcloud.com/t/why-is-owncloud-still-faster-than-nextcloud-after-all-this-time/58420)._