I have a SharePoint list form which is taking average 20 seconds time to load. When I check in Chrome Developer Tools, I found that Waiting(TTFB) is taking around 18 seconds to load.
This issue is only on this one SharePoint list's Display and Edit Forms. New item form of the same list and other pages are loading normally.
I have also created new Edit and Display forms from SharePoint Designer, but on those new forms also waiting TTFB time is same, no difference.
What is the solution to reduce the Waiting(TTFB) time?