asingk

Have you tried a profiling plugin? A different theme?
Answer : I didn’t Change anything pluig-in before page load time problem occurs

Have you contacted your hosting company?

Answer : Yes, he said : you can looking this test :
http://www.webpagetest.org/result/140911_CF_6W8/1/details/
And also tell me in the red line doing many things, so maybe in the css or js have a wrong code

As we can see, in the red line is swiftype, jquery
Also I can make sure, if i didn’t Change anything before problem happened

I just want to make sure, if I didn’t Change anything before page load time problem happen

Are you running a cache plugin?
Answer : No, i’m not install any cache plugin, ie : W3 Total, WP Super Cache, WP Fastest Cache, etc

If your host provides phpmyadmin, have you looked at the “status” tab?
Answer : not provides