This is not necessary. Create an (admin) user, set the user as Feed Import Owner, download the feed data (all of them!), start the service daemons and let ospd-openvas and gvmd finish loading the feed data. Loading the feed data really takes a while! I’ve written some hints for the container docs when the loading of each data type is finished at Greenbone Community Containers 22.4 - Greenbone Community Documentation which is also valid for non-container setups.