Scene loading is very very slow

Hello Everybody

I could not find a solution here, that's why I opened this topic separately.

So, here is my problem, I have Menu Scene and Game Scene, I am trying to load Game scene with with button which is on menu scene. On menu scene I have a button which has a flow macro which shows this button with leap rotation (like animation) and it has load scene script which is a separate c# script. When I click the button, it's taking so and so much time like 15-20 seconds to load the game scene, if I remove flow machine from this button, it's loading the game scene very smoothly. Why this is happening, anybody has an idea?