Displace Modifier: reset scale problem HERE THE FILE



This is my tunnel with all my stats . . . I had a sub surface and the displace with CLOUDS.



I want to import this model in Unity and I have to change the metric then I click on scene and modify the general scale from 1 to 0.01. After that, I scale my mesh in order to bring it back to correct measures. Now the situation is this



My mesh has the scale settings (100 100 100).

In oder to reset the scale to (1 1 1) I press Ctrl + a and then Scale. The displace disappears cause the new scale:


The only way to bring it back is to increase the value of the strenght (from 0.2 to 20) in the displace, and i did it but the result is this below:



The problem is this: It's completly different from the initial result i had before! Take a look 



It's look like denser, and sharper . . . How can I fix it? What could be my error in this workflow?

Thank you so much for the help!!
I see no problem in your scene, it's just that you need to multiply the size of your texture by 100 not by 10, idem for the strength