Using WordPress API to mass update posts freezes the server

This guy here got the following results doing something like “If you are importing a high volume of posts, go make a cup of tea. For this tutorial, I have created around ~1600 dummy posts. The progress bar below is up to 429/1600 after 4 minutes. It took around 15 minutes to complete the 1600 dummy test posts to write to the database via the API.” https://chrisleverseo.com/t/python-script-to-bulk-upload-new-wordpress-posts-from-a-csv-file-using-wordpress-rest-api.93/