Hi Kurt,
thank you so much for your reply.
After reading it I went further with other plugins and that’s what I’ve done:
– correct reccomendend notifications with theme check
– I installed “Log Deprecated Noticies” and didn’t show anything bad. It says it’s all ok.
– I used Debug Bar to check pages and things sound good: any strange notices and good queries timing.
but the website loading is still too slow. At least 5 secs to load and sometimes almost 10.
I ran GTmetrix too an this is the result: pdf
Can’t understand what’s the problem. Is there any other tests?