Nextcloud WebDAV performance extremely slow

[Mornsgrans]

As discussed a few years ago:

Sync speed limited to 30MB/s, WebDAV/php bottleneck?

Closed bugreport here: https://github.com/nextcloud/server/issues/9736 Anyone here reached higher than 30MB/s with Nextcloud? Nextcloud is awesome in everything but speed for copying large files, am looking for a way to improve it. Have caching setup per documentation, tried fiddling with nginx/php settings without joy. Edit: when monitoring a file transfer I see high CPU usage pegged at one core for processes of nginx and php-fpm.

WebDAV is slow.