Long server response on Opencart in 5000ms?

Question

PHP

The site on Opencart does not give an answer for a long time. What can be done?

Detailed phpinfo:

Answer 1

The kernel is old, the version of PHP is old... the first thing that comes to mind is to transfer everything to hell to a more recent OS, thoughtfully setting it up along the way.
Or wait - is it some kind of shared hosting, or what? Then you can move your hands for a very long time - and the reason will be in some thread of a voracious neighbor.

Answer 2

Without skills, there is practically nothing but to hire a specialist.

Answer 3

Without skills, it won’t work to wipe yourself ... It’s just that there is no “do it well” button there. It is necessary to check the database for the presence of the necessary indexes, and according to the mind, the timing of the code with cutoffs before / after requests / cycles / critical sections is also first. So just "hit the server harder" will not work.