Clicking the document and not opening it is not fun

Hello
From 1 month We have a big problem with Adobe Asrobat Reader
I contacted the local seller of Adobe Reader but he could not solve my problem.

Step by step I will write you our problem to find out and write me what to do about the case.

when I click the document twice with the mouse it waits a long time, and when I open the adobe reader and open fillet and show the document then it opens quickly.
This method slows us down a lot.
I didn't have this problem before.

We have 15 users who use Creative Cloud
Acrobat Reader DC Pro and all these users work with Acrobat Reader

Please
solve our problem immediately.
It is quite difficult to work this way.

Thank you very much.
All the best, thanks.