You might be in a shared hosting plan and most hosting providers allow CPU usage only to a certain level. Be careful that many wordpress themes (including commercial ones) i have seen can take more CPU power. If that is the case the hosting provider may suspend your account. I had a situation with bluehost where you are allowed to use only 40% of CPU in a 140 sec window. If your site consumes more than 40% of cpu with bluehost you will get “CPU exceeded” error. You will have to wait for 5-10 minutes for your site to go to normal.

If your wordpress theme uses more SQL queries which means it causes mysql server to put more load on CPU and your hosting account may suspended . I have seen many wordpress news/magazine themes use more unoptimized mySQL queries in the frontpage.

Be careful! on the wordpress theme you select.

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