eM Client gets stuck when checking multiple emails


I just set up an Exchange account on eM Client.

I have set the “Mark as read” to 0 seconds.

In the morning, I often have many unread emails, and I want to quickly check each of them and have them automatically be marked as read.

Clicking email 1, 2, and 3 is fine, but as soon as I go beyond that and check the 4th, 5th, etc… eM Client slows down and stops showing me the email body, only showing the loading dots.

I have to close and re-open eM Client for it to act normally again.

What can I do?

Thank you!