My Prestashop Back Office is starting very slowly, it takes more than 3 minutes to become responsive!

[Alexander Firsov]

I experience an extremely slow initialization of Prestashop Back Office Admin Dashboard, it takes about 3 minutes or more after successful log-in to complete initialization. During this time the Admin Dashboard is irresponsive. My Prestashop version is 1.7.7.1 installed on Microsoft IIS server 8.5 (Windows Server 2012R operating system). I am using PHP version 7.3  and MySQL version 5.7

I am using the old MySQL version because it still has the good old PHP request cacheing option. And I find it very useful indeed.

Edited May 28, 2022 by Alexander Firsov (see edit history)