I have a problem arises while sending emails to users my system takes too long for sending each different emails to users
if single mail to multiple users is fine, but different mail to each user is time consuming
I'm Using Sendinblue transactional email for sending email https://developers.sendinblue.com/reference#sendtransacemail
You can use
Django Celery email
package. It's a Task manager system and it can help you send your emails faster and outside of the main thread. You can read more here: https://pypi.org/project/django-celery-email/