We fire an E-Mail in Journey Builder through API event right after entry, this usually take between 1-2 minutes even when email priority is set to high. Are there any settings to deliver the mail instantly without delays?
Short Answer: No
Explanation: The system also takes time to get its act together. Things rarely happen real time as it's goes through SFMC's Outbound Mail Messaging Pathway .
Delivery times are also impacted by the recipient's server (i.e depending on their network and their own "inbound mail mechanism" ) it might take longer for an email to be delivered.
You can help the system out by giving it less to process in your email.
You can do this by;
- not using SSJS
- Reducing API calls within your emails
- only using HTTP functions when necessary
- not using content syndication