Hi,
I'm Sumit, here to answer your query at the Microsoft Community.
Apologies for any inconvenience you are experiencing. I am happy to help you today.
I wish I had a good news for you - but no :(
There is no built-in way to deactivate or hide the "average time to complete" metric in the View Results section of Microsoft Forms for standard forms (not quizzes). This metric is automatically calculated and displayed based on submitted responses, and Microsoft Forms does not provide an option to turn off or hide this information from the results view.
Could you please send feedback to Microsoft 365 team? This is just a user-user support forum.
https://support.microsoft.com/en-us/office/how-...
I hope you find this information useful. If you have any more questions, don't hesitate to reach out. Otherwise, please take a moment to rate the thread. Wishing you good luck!