Service Engine Screen Loading whenever i click any function

Service Engine Screen Loading whenever i click any function

Hi..

I have two server, Primary and Secondary.
I just found out that every time i used Primary server, the Screen Loading pop up always appear whenever i changes the screen or click any function, it's loaded well but it's a bit annoying, in my Secondary server it's not appear at all. Even thought i switching the server, it's only happen in my Primary server.

Thank you so much for help.