Typically, most courts will take 1-2 business days to process a filing submitted to them through the eFile site. This timeline will vary from court to court, though. Read more here.
If your filing has been in submitted status for longer than 2 business days, and you have not seen an update on the status of the envelope, it is recommended to contact the court you are filing in for assistance. You may ask to speak with a clerk who handles eFilings for a timeline to process your filing, and/or any further steps to take.