Admin Ajax Calls Takes Forever

For example on the order manage page, when you change the status of the order from lets say "processed" to "complete" the ajax takes along time almost 8 - 14 seconds before showing "Status has been changed" notification then removing the loading box, but if you reload the page immediately after making the change (while the ajax is still running) you'll notice that the change was instantaneous, just something wrong with the ajax call, how can this be fixed

Try to change status without email notification to customer and admin. Sometimes sending emails takes too much time

That's true, how can I exclude the email from the ajax request?

Since it is well known issue, please contact support team. Most possibly they have a fix for it

The support team, they never respond to any message i send to them, do you have any suggestion?

The support team, they never respond to any message i send to them, do you have any suggestion?

Unfortunately, I have no fix for this issue. For example, try to send emails through SMTP instead of phpmail