Slow site loading, online store on opencart 3?

Question

opencart

Hello everyone, in general, I also had such a situation that the site itself loads in 2 seconds, and the formation of a request to the server takes about 10-15 seconds. What could be the reason? gtmetrix writes loading in 2 seconds and supposedly everything is fine, but the site itself starts to hang when you go to the pages. Here is the website https://markt.by. site on opencart 3.0.2.0. The site is on vds timeweb.
They also told me that the problem could be that opencart at the controller level accesses the database through a loop, and not through an array, did anyone solve this issue?

Answer 1

slow query log?
cycles?
bad hosting?